P1140786 by rrunnertexas, on Flickr

I recently purchased this nice looking brass shutter. The front states it is from a Poco camera by Rochester Optical, 5x7.

I'm seeking more information about this shutter and who made it. Bausch & Lomb?

Both lens elements are clean and clear, but unlabeled as to what type they are.

It is in working condition, 1/25th, B and T.

A Google search did not reveal much. Any help is sure appreciated.