How to Make Photographs, and other papers, Perry Mason & Co., (Boston, MA), undated c. 1890, ~3 ½"x5 ½", 16pp & etc.
The following documents were found with an example of a Perry Mason & Co. Companion Camera (which may be viewed at http://www.piercevaubel/cam/anthony/eureka.htm), made by E. & H.T. Anthony (and marketed by them as the Eureka).
Booklet 2, ~5"x6", 8pp
Envelope 1 and contents, ~6"x3 ½"
Envelope 2 and contents, ~4 ½"x3"
