Historical information
A 6 x page foolscap sized precis, two hole punched and stapled produced by the Australian School of Military Survey discusses using Stereo templet triangulation of aerial photography to establish extra supplementary horizontal control positions. Triangulation using Stereo Templates is a method of achieving the horizontal scale solutions required for photogrammetric mapping procedures.
Physical description
A 6 x page foolscap sized precis, two hole punched and stapled. The precis does not have a protective cover
Inscriptions & markings
No "61" on the top LH Corner