John Corb , Dec 30, 2006; 03:30 p.m.
this page suggests it is a model IIIf
http://www.cameraquest.com/ltmnum.htm
there are variations of the model, these pages will give you more info to narrow things down... (link) http://www.cosmonet.org/camera/leic3f_e.htm http://www.pacificrimcamera.com/pp/leica/sm/iiif.htm
instruction book... http://yandr.50megs.com/leica/3f/3f.htm
