Hi, I found a bunch of old family negatives from around the late 1920s or early 30s. No information on who the photographer was or what was used. The negatives measure about 9 x 11.5 cm (or 3.5 x 4.5"). I'm wondering what the actual film format would have been for this, and what kind of camera would have been used. Would this have been sheet film? Is this quarter plate (according to google 3 1/4" x 4 1/4", a bit too small perhaps) or something else? What would be a representative camera for this kind of format? Thanks, Walter Incidentally I did a couple of van dyke brown prints of them and they look really nice. I'll put 'em in the gallery once I get around to scanning them.