by nvmos2 » Mon Jun 17, 2013 3:24 pm
I've "restored' (amateur job) two of these;
the reel bundles on both were the same; a clip on center top and bottom of each card.
Getting them off I used a long thin blade screw driver to pry open the hook on the back of the clip, then to open the clip itself.
To put cards in, I used a long needle nose plier to close the clip, then to bend the hooks back down to secure the clip.
The hard part was setting up a stand to hold the reel bundle to be able to work on individual cards with both hands;
I suspended the bundle between 2 tables and slip a piece if plexiglass under the cards, one at a time.
There is a guy with a website who really knows these machines a lot better than I; mutoscopeman.com