“R” is for Retina. Kodak has a series of cameras with the Retina name.
Most are rangefinder cameras for 35mm film, but there is at least one Retina SLR (the Retina Reflex).
The pre-war Retina was very much a tiny bellows camera designed for the newly developed 35mm film cartridge.
Later, it was a simple viewfinder camera, still maintaining the fold-out lens.
The Automatic III had a coupled rangefinder, to make focusing easier. However, it no longer has the fold-out lens.
Reference: McKeown’s Price Guide to Antique and Classic Cameras, 12th edition, ISBN 0-931838-40-1
The other cameras featured in this A to Z Challenge are linked on this page.
Penny Higgins - Storyteller • Artist • Scientist 
The Retina 1 (119) is identical to the type 126 which however has a chrome top plate instead of the black lacquer on the type 119. The were made 1936-38, not 1937
I have a specimen of the type 119 also the IIc (020) 1954-58, mine was made March 1957 and is a thing of beauty!
See http://www.retinarescue.com
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