Help disassemble Wollensak Vesta.

[tom2]

I was wondering if anybody had any experience taking apart rear elements of Wollensak Vesta. Mine 8X10 Vesta seems to be shut for good. Inner faces of air spaced rear glass elements need serious cleaning but I was not able to make the threads move at all.
Thank you.

[BarryS]

Which threads? The rear cell unscrews and then the threaded inner cell unscrews from the back retaining ring. Try a rubber gripper, like the type used to open jars. If that doesn't work, try a few drops of penetrating oil, let it sit overnight and retry the gripper. You may need two grippers to get the cell apart.