There are quite a few of these guitars with chrome hardware on ebay right now, including a 12 string:
http://www.ebay.com/itm/VINTAGE-1964...item19d0ca4219
http://www.ebay.com/itm/RARE-1960s-V...item27c4466345
http://www.ebay.com/itm/Vintage-Fram...1687 2wt_1189
http://www.ebay.com/itm/1965-Framus-...t_500w t_1204
Plus I found a video of a guy demonstrating the same "organ effect" on a different model Framus, and a bulletin board which explains that the effect is "a spring controlled lever for pannig the tone between the PU's". The Framus vintage archive I linked to before tantalizingly and perplexingly calls it a "half-mechanical organ effect". Not very organ-like to my ears based on this video demonstration, maybe more convincing with louder amp, effects,etc...
http://www.youtube.com/watch?v=8Qed4KPvWIo
http://acapella.harmony-central.com/...t-1956473.html
TMI perhaps? Very cool vintage Jazzmaster/Jaguar inspired guitars with their own thing going on.