There are quite a few pictures of the aviator, Amelia Earhart, holding a Kodak Duo Six-20 camera. This one was probably on board her Lockheed Electra when it went down somewhere in the Central Pacific in 1937.
I picked up my Duo Six-20 recently on ebay for $29. I was a little apprehensive about being the only bidder on the camera as you wonder what defects you might have overlooked that others saw. Luckily, my fears were unfounded, and the camera was in very nice shape for its age. The only real sign of use was the paint worn away from the metal trim. It is a little tempting to try to retouch those worn spots, but I think I prefer to let the camera wear a bit of its history.
I cleaned all the lens surfaces, got some tape residue off the back panel, and applied some black dye and Kiwi Parade Gloss to restore the leather. The T and B settings were a little sticky, but the other shutter speeds all seemed good. One tiny pinhole in the bellows was patched with a dab of black fabric paint.
This Duo Six-20 has a 70mm f3.5 Kodak Anastigmat lens that is nicely sharp and which renders tones beautifully. The camera is a bit smaller than the Series II model which I have had for some time, and it does not have the top-deck shutter release. I shot my first roll in the camera this morning while walking around the UNM campus.