I recently got lucky and was able to find a set of brass lenses at a garage sale. They are labeled Queen & co. Philadelphia with the signature "E. Francais" on them. The glass is in perfect shape and the only part I see missing is the flange and lens board which I can have made. The problem is that I can find very little information on the lenses and what combinations of lenses will cover what formats and focal lengths. Any help would be great. Thanks
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