I just received an early 9.5" Goerz Dagor set in an Optimo shutter. The lens optics look clear -- that's the good news. For the life of me I cannot figure out how to cock and fire the Optimo shutter.

Can somebody explain how an Optimo works? Any tips for repairs, if needed?

If it's dead, does anyone have any suggestions for resetting the Dagor elements in another shutter? S.K. Grimes is quoting $400 for resetting them into an Acme Synchro shutter that I supply. Is anyone else besides Grimes machining lens settings?

All advice is greatly appreciated.

Sanders McNew