Table of contents: Editorial, Our helpful servants, Tuberculosis, Retimbering main hauling shaft, Ferro concrete, Notes on incandescent lamps, Sporting notes, Hints on prospecting, Geometrical boarding, Abstract from chemical journals, Past students, Gain in power and economy by condensing operations, News and notes, Correspondence, Balance sheet, Editorial notices.Gray coloured booklet of 24 pages. ballarat school of mines, students' magazine, james t. mitchell, sherb. h. sheppard, a. d. gilchrist, j. h. chambers, w. h. shoebridge, w. b. maine, j. h. osborne, e. mclachlan, harold r. emsley, francis herring, w. geldard, c. c. ross, h. j. whittington, a. c. morrison, e. w. heighway, h. brook, w. kingston, francis greene, w. e. figgis, h. hoylton, w. r. thomas, basil sawyer, c. w. nash, a. crittenden, s. h. shephard, j. blayne, t. lennon, h. f. owen, j. sutherland, h. nevett, r. c. stewart, a. smith, c. whyte, m. j. dobie, r. d. nevett, rupert king,, j. m. currie, w. b. blythe, f. a. marriott, f. brinsden, l. d. cameron, john sutherland, f. a. moss, g. c. klug, c. m. harris, n. stuckey, w. white, gerald young, karl moore, r. e. avery, mel. gray, j. milbin, horace giles, w. brokenshire, a. s. coyte, a. a. booth, r. g. todd, g. sides, j. grieve, jack wallace, sydney burdekin, arthur nevett, w. h. callister

Table of Contents: Editorial, Annual Report of the S.M.B.S.A. 1910, Annual Dinner, S.M.B.S.A. Notes, Sports, Correspondence, Motor Maxims, Answers to Correspondents, Little Drama, Radium in Australia, Shaft Sinking as practised in Ballarat, Mining Notes, Geological Notes, Treatment by Clancy Process, Mining in Bendigo, Cyanimid, A Locally made Gramophone, The Miners' Chorus, Past Students, Editorial Notices.Green coloured booklet of 21 pages plus advertisements.ballarat school of mines, students' magazine, geo. g. sams, professor t. h. laby. past students': j. r. booth, w. t. lakeland, lewis westcott, leo. m. seward,, reginal williamson, stanley white, clyde allan, charles laird, w. e. eyres, virgil tucker, h. hawkesworth, h. j. saw, fred. g. brinsden, c. stevenson,, j. peart, e. m. weston, dick galloway, h. b. bennetts, g. r. curry, h. meadows, will watson, don. cameron, eric bieske, cliff. garrard, lindsay d. cameron,, phil brown, w. p. avery, j. foster, j. bickett, f. h. inglis, g. davenport, l. c. courbould, t. lennon, h. wilkins, g. h. reid, c. hesselmann, e. fraser,, reg. callister, f. bicknell, leslie blick, w. t. sayer, h. f. hall, o. e. jager, w. geldard, p. c. downes, g. sides, f. bruce, chas. stubbs, ralph ingram-moore.

Princess Theatre, Bendigo. Bendigo Orchestral Society & YMCA Choir. Maritana, Souvenir Programme 6d. Mon. Tues. Wed. August 7, 8, 9. Opera Produced by Mr E A Parker. Musical Director, Mr Oscar Flight. Deputy Director, Mr Alfred Sayer. Leader of Orchestra Mrs McKinnon. Chorus trained by Mr Wilfred Taylor. Chairman of Committee, Mr W Spencer Lake. Business Manager, Mr C J Greenhill. Pictures of artists: Miss Paulyne Bindley, Mr E A Parker, Miss Gwen De Ravin, Mr Wilfred Taylor, Miss Alva Stewart, Mr H H Turner, Mr Oscar Flight. Group photo of Ballet dancers. Argument - Maritana, a handsome Gitana, whilst singing to a crowd of people in a square in Madrid, attracts the admiration of the King. Don Jose, and unscrupulous courtier, observing this, determines to satisfy the . . . Characters: Paulyne Bindley, Gwenneth De Ravin, E A Parker, Wilfred Taylor, Lyell Shepherd, J W Smith, H H Turner, Lindsay Wright. Court Ballet: Miss Mercia Wright. Solo Dancer: Miss Fay Drummond. Chorus of Soldiers, Gypsies, and Populace. Deputy Principals: Alva Stewart, Frieda Bertuch, H J Allen. Costumes: Madame Tettrazini, Miss Ada Colton, Mrs E A Parker. Orchestra. Violins: Mrs C Adams, Miss J Anderson, Mr R Bright, Mr O Flight (jnr), Mrs S A Grant Mrs H Hillman, Miss J Houston, Mr G Krost, Mrs S McKinnon, Miss A McKinnon, Miss A McNair, A Sayer, Mrs L Shepherd, A Swift, H Timms. Viola: Mr P Coope. 'Cellos: Miss R Giudice, Mr W S Lake. Bass: Mr J Ditchburn. Flute: Mr A E Sayer. Clarinets: Mr B Smith, Mr P Waterman. Harpiste: Miss Whitelock. Cornets: Mr W Norman, Mr P Smith Mr A Swift, Mr F Taylor. Horns: Mr W Green, Mr N McPherson. Trombones: Mr Les Bishop, Mr E J Meagher. Drums: Me J McLaughlin. Piano: Miss I Benson, Miss E Flight. Chorus. Sopranos: Miss D Broome, S Brown, Mrs R Burland, Miss Betty Cant, E Colclough, E Collins, Bessie Davis, P Dunn, G Farmont, M Heyes, D Hoking, B Harpin, M Kitto, D Kirkwood, E Parker, L Simpson, Ida Stephenson, M Stephenson, L Smalley, Mrs W Taylor, V Thorpe, Miss Myrtle Taylor, Annie Thomas, Mrs C Walk, Miss R Wallent. Contraltos: Miss F Bertuch, Mrs D Campbell, Miss I De Ravin, M Davis, P Elliot, Mrs J Greenhill, Mess N Irving, I James, J Seers, J Shepherd, G Stephens. Tenors: J Cotton, G English, D Finery, Alec Jones, E Jeffery, D Parker, J Sims. Basses: D Doran, J Finerty, J H Hardie, A B Kirkwood, W L Macauley, S C Powell, R Prigg, W Reed, Les Spencely, Cyril Taylor, Ken Taylor. Mr Ron Hovenden, Scenic Artist. Ballet: Misses Clarice Harry, Rita Lansell, Thelma McKenzie, Mena Bailey, Dorothy Roberts, Fay Drummond, Kath Dungey, Jean Wright. Dance Mistress Miss Mercia Wright. Photo of dance group on rear cover. Printed down right side: Mr W. Reed - With Compliments from ''Maritana'' Committee. Sep 5/33. Signed: W Spencer Lake. Very decorative cover. B/ Envelope addressed to Mr W Reed, Lily St, Bendigo. 2 pieces of white tape on left side one top and one at bottom, stamp gone post mark Bendigo.Reed & Co., Printers, Bendigotheatre, opera, bendigo orchestral society:ymca cho, princess theatre. bendigo orchestral society & ymca choir. maritana. august 7, 8, 9. opera by mr e a parker. musical director, mr oscar flight. deputy director, mr alfred sayer. leader of orchestra mrs mckinnon. chorus trained: mr wilfred taylor. chairman of committee, mr w spencer lake. business manager, mr c j greenhill. photos of: miss paulyne bindley, mr e a parker, miss gwen de ravin, mr wilfred taylor, miss alva stewart, mr h h turner, mr oscar flight. group photo of ballet dancers. argument - maritana, a handsome gitana, whilst singing to a crowd of people in a square in madrid, attracts. . . characters: paulyne bindley, gwenneth de ravin, e a parker, wilfred taylor, lyell shepherd, j w smith, h h turner, lindsay wright. court ballet: miss mercia wright. solo dancer: miss fay drummond. chorus of soldiers, gypsies, and populace. deputy principals: alva stewart, frieda bertuch, h j allen. costumes: madame tettrazini, miss ada colton, mrs e a parker. orchestra. violins: mrs c adams, miss j anderson, mr r bright, mr o flight (jnr), mrs s a grant mrs h hillman, miss j houston, mr g krost, mrs s mckinnon, miss a mckinnon, miss a mcnair, a sayer, mrs l shepherd, a swift, h timms. viola: mr p coope. 'cellos: miss r giudice, mr w s lake. bass: mr j ditchburn. flute: mr a e sayer. clarinets: mr b smith, mr p waterman. harpiste: miss whitelock. cornets: mr w norman, mr p smith mr a swift, mr f taylor. horns: mr w green, mr n mcpherson. trombones: mr les bishop, mr e j meagher. drums: me j mclaughlin. piano: miss i benson, miss e flight. chorus. sopranos: miss d broome, s brown, mrs r burland, miss betty cant, e colclough, e collins, bessie davis, p dunn, g farmont, m heyes, d hoking, b harpin, m kitto, d kirkwood, e parker, l simpson, ida stephenson, m stephenson, l smalley, mrs w taylor, v thorpe, miss myrtle taylor, annie thomas, mrs c walk, miss r wallent. contraltos: miss f bertuch, mrs d campbell, miss i de ravin, m davis, p elliot, mrs j greenhill, mess n irving, i james, j seers, j shepherd, g stephens. tenors: j cotton, g english, d finery, alec jones, e jeffery, d parker, j sims. basses: d doran, j finerty, j h hardie, a b kirkwood, w l macauley, s c powell, r prigg, w reed, les spencely, cyril taylor, ken taylor. mr ron hovenden, scenic artist. ballet: misses clarice harry, rita lansell, thelma mckenzie, mena bailey, dorothy roberts, fay drummond, kath dungey, jean wright. dance mistress miss mercia wright. photo of dance group.

Description White plastic doubled sided Graviscope stored in protective leather carry case. Case is fitted with pair of press studs, pocket in front for holding instructions and is stamped "Graviscope / for / Lincoln / (Australian) / Manufactured by / Melb > W & G < Aust / R.A.A.F / Ident. No G6C/3972". Plastic graviscope consists of a 277mm white disc, printed on both sides, overlaid on one side by a 224mm disc and the other side by a 175mm disc. All discs located by central screw, to which is attached a 160mm long x 25mm wide clear celluloid strip. History / Summary The graviscope is a computing device, which in aircraft was used for measuring the centre of gravity in an aircraft. This would vary depending on crew, bomb load, fuel and stores carried. It was used in the British designed but Australian manufactured, Government Aircraft Factory (GAF) Lincoln heavy bomber, which was operated by the Royal Australian Air Force (RAAF) in the years following the Second World War. This aircraft was originally a derivative of the famous Avro Lancaster bomber. The Lincoln was used by both the RAAF and the Royal Air Force in operations against Malayan Communist terrorists during the Malayan Emergency, 1948-1960. This graviscope is of the type designed for and used by RAAF and RAF aircrew who operated this aircraft.Many by W and G Australia