I have previously used someone else's B&L Rapid Rectilinear lens mounted in a Kodak Ball Bearing shutter on my Crown Graphic and I liked the images. Last week, just by chance, a Kodak No 3A Folding Autographic camera with a B&L Rapid Rectiliner came into my posession (free!) but the shutter blades are all damaged and it cannot be used, while the glass elements of the lens (front & back) are both in excellent shape. I would consider putting them into another used shutter but I do not know how to find out what size shutter to use. I tried it in the Graphex shutter for my 135mm Optar, but the lens elements were too small for the shutter threads. I have searched on the internet for some information, but I always see that lens just in reference to the Kodak Ball Bering shutter (or the equivalent) or in a shutter-less barrel form. Can anyone provide any information on what size shutter to look for? Or is it a lost cause and I should just look for another Kodak 3A? Thanks.