The Senior Six-16 & Senior Six-20 Kodak Camera were manufactured by the Eastman Kodak Company from 1937 to 1939. The Senior Six-16 Kodak camera took 8 exposures, 2 1/2 x 4 1/2 inch size, on number 616 film without reloading. The Senior Six-20 Kodak camera took 8 exposures, 2 1/4 x 3 1/4 inch size, on number 620 film without reloading. Both cameras were self-erecting with two Kodak Anastigmat lens options, either f4.5 with Kodamatic shutter or a lesser quality f6.3 with a Kodex shutter or No.1 Diomatic shutter. Camera features include an optical folding direct view eye-level finder, knurled winding knob, table top swing out legs for portrait plus landscape pictures, 3/8 inch 18 thread tripod mount sockets for landscape plus portrait, shutter speeds up to 1/150 of a second plus Bulb & Time, a linkage shutter release that is located on the side of the camera or you could use the shutter release lever to the right of the manual shutter loading lever, and a handy leather carry handle. Originally priced at $35.00 and $31.00 respectively for the f4.5 lens and $23.00 and $20.50 for the f6.3 lens respectively.