It's my understanding that the newer style (black metal rear piece with silver metal front piece) can be used in all of the models listed, while the older style (with two silver colored pieces of metal) may only work with the B22 due to the fact that the back hinge of the carrier is thicker. If you're interested in any specific one, please PM me and I'll send you a picture if you want. Just too many of them to do them all! Paypal is preferred, but MO is ok too. As always, shipping is extra, but should be minimal due to the small size of these carriers. New style for C700 / B22 / B66 35mm $12 6x6 $15 6x4.5 $30 110? (opening measures 5/8 x 1/2) $15 Instamatic? (opening measures 1 1/16 square) $15 Old Style for B22 35mm $10 6x6 $13 Instamatic? (opening measures 1 1/8 square) $13 35mm half frame? (opening measures 11/16 x 1) $15 Omega C760 / C67 XL 35mm Full frame (cat number 423-404, in original box) $20 Anything with a "?" after it; I'm not totally sure what format it's for, which is why I've provided the opening measurement also. Thanks!