It appears one bag mag is a 4x5 the other is 3 1/4 x4 1/4. I know this doesn't help.
The longer lens is a telephoto design so it will need less bellows draw for the given focal length making it useful on a reflex camera given the bellows length limitation. the other looks to be a B&L Tessar Ic f4.5 around 9 1/2"fl. A nice enough lens.
Last edited by Louis Pacilla; 7-Jun-2013 at 09:03. Reason: add
Thanks Louis, I did not even notice they were different sizes.
The camera in the photos you posted is a 3x4 Series D.
Thanks!
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