Instructor E. R. Lang, PhoM 2/c explaining the Vectograph to Class III students in Aerial Photography. E. R. Lang, PhoM 2/c left demonstrates the Vectograph sheet between two matrices for rolling into contact with the wringer to insure correct registrati
Instructor E. R. Lang, PhoM 2/c explaining the Vectograph to Class III students in Aerial Photography. E. R. Lang, PhoM 2/c left demonstrates the Vectograph sheet between two matrices for rolling into contact with the wringer to insure correct registration of the Stereo image in the finished Vectograph. J. Miller, PhoM 3/c (center) and A.V. Mitchell, PhoM 3/c give close attention.
Instructor E. R. Lang, PhoM 2/c explaining the Vectograph to Class III students in Aerial Photography. E. R. Lang, PhoM 2/c left demonstrates the Vectograph sheet between two matrices for rolling into contact with the wringer to insure correct registrati
Instructor E. R. Lang, PhoM 2/c explaining the Vectograph to Class III students in Aerial Photography. E. R. Lang, PhoM 2/c left demonstrates the Vectograph sheet between two matrices for rolling into contact with the wringer to insure correct registration of the Stereo image in the finished Vectograph. J. Miller, PhoM 3/c (center) and A.V. Mitchell, PhoM 3/c give close attention.