First type of metal filament lamp. Used as spot lights or a bank of these bulbs were used for load when testing the generators at SMB or University of Ballarat.Royal Ediswan, 240 V 60 W, pear shaped, wire filament bayonet light bulb.ballarat school of mines, globes, ediswan, lamps, light bulbs, bayonet

Most were used in various capacities at Ballarat School of Mines or University of Ballarat.Assorted lamps including Edison Carbon filament light bulbs and other special purpose lamps, .1-3) Robertson, pear shaped 220 V 16, carbon filament? bayonet light bulb with 'nipple'. .4) Ediswan, standard shaped, 928, carbon filament? bayonet light bulb with 'nipple'. .5) (B in a circle) 280 V 32 oo1A, pear shaped, carbon filament? bayonet light bulb with 'nipple'. .6-7) Crompton? standard shaped, carbon filament? bayonet light bulb. Clear glass with an amber tint. .8) 230-240 V 40 W, pear shaped, wire filament bayonet light bulb. .9-10) Osram standard shaped, heavy spiral and disc electrodes, bayonet light bulb. (The disc is loose in 10) .11 a&b) Osram black glass, large standard shaped, 230-240 V 125 W, bayonet light bulb. .12) Philips tubular shaped projector lamp with instruction leaflet. .13) Philips tubular shaped projector lamp with instruction leaflet in original box. .14) EH JA 12 V 55 W small projector lamp. .15) Large special purpose, standard shaped, frosted bayonet light bulb. .16) Siemens, standard shaped, modern Edison screw light bulb. .17) Philips, standard shaped, modern Edison screw, frosted light bulb. .18) Crompton, gas filled 240 V 75 W, standard shaped, bayonet frosted light bulb in original box. .19) Crompton, gas filled 230 V 300 W. standard shaped, large modern Edison screw light bulb. .20) Probably an extension cord with a bayonet fitting at one end connected by a twisted cord of two fabric covered wires to a large socket. This socket has a copper Edison screw inner, surrounded by a ceramic tube and covered with a copper housing. The housing is cracked in two places.Some have makers brand and voltage and wattage stamped onto the glass.scientific instrument, ballarat school of mines, globes, edison, lamps, light bulbs, bayonet