Posted by Alec on May 04, 2001 at 10:00:16:
In Reply to: shutter-lens posted by Art Westman on May 04, 2001 at 08:45:16:That question has come up before. Look at the messages below. Do a search [using your browser].
Unfortunately, as I recall, there was no clear consensus reached on what those things were for. They come up on eBay from time to time.