production of graticules
By: by A.J. Bull, H.M. Cartwright and F.H. Smith.
Contributors: Cartwright, Herbert Mills.; Smith, Frank H.
Published: 1947
Language: eng
Notes: Part 1 by A.J. Bull and H.M. Cartwright. Part 2 by F.H. Smith.

Extracted from Photographic journal vols.87B (1947) and 88B (1948).