Item in the collection re Craig Triffett. Refer Cat No 5997.5 for his service details.1. This is a clear piece of flexible plastic. It has 180 degree arc markings on it. The reference line is at the bottom. Internal rings have numbers marked on them, i.e. 1,2,3,4,5. The outside ring has graduations in 1*. At the bottom are words "Observers Location - Grid", and "Altitude". Scale 1:50000 Army Form B 6716 (1971). 2. Similar to above, but slightly cropped. No explanatory notes.artillery, plotting, protractor,

Item re Frederick Gardner DAVEY DFC No 410533. Refer Reg No 3536P for his service details. Used in map reading & air navigation. .1) Square green coloured card pocket for storing protractor / rule. Instructions for using the protractor / rule printed on reverse of pocket. .2) Combined protractor & rule. Square clear plastic with degrees markings around the outer edge. North marked in red. Centre area gridded in one centimeter squares..1) Printed on front: W & G DOUGLAS COMBINED PROTRACTOR AND PARALLEL RULE .2) Handwritten in pencil on back: 410533 DAVEY F.G.navigation, maps, equipment