I spent the evenings yesterday and today cleaning up this old laser I found on Ebay and received just in time for next week's Laserfest exhibit at SPIE's Optics & Photonics in San Diego. It gave 50mW TEMoo at 488nm, has one of the most "'60s" look to it I've seen, and cost $3995 in the Summer of Love. The Model 300 and the 100mW Model 700 were the first lasers from this company, the first formed specifically to make Ion lasers. This one is Serial Number 107 (all the parts are stamped with that number), and weighs 45 pounds.
Here's a pic of the bottom with the cover off. There is a Granville-Phillips valve installed that broke free in shipping and smashing the piece of glass still attached. The plasma tube is gone, but the magnet is there (left to dance around during shipment to me). The mirror mounts are there with the mirrors, and the hour meter on the rear shows 303 hours.
I've been finding these old lasers faster than I can properly photograph them. After this show, I'll be focused on doing just that. PL's own LesioQ came through big time with 3 more ... a '63 Spectra-Physics Model 115 He-Ne, a '77 Kwant He-Ne, and a '77 PZO Model LG-200 educational He-Ne that's very cool! Sam Goldwasser and LesioQ are my heros, as are the others who've graciously parted with their "cabinet grannies".