Where can I obtain data on Mission Tonearms

I just purchased a Thorens TD 160 super that came with a Mission tonearm and a Grado F2 cartridge from the UK. I plan on converting to a 60 Hz pulley and selecting 120V pinouts for North American Operation. The tonearm does not have any part numbers printed on it. The only marking is a Mission Electronics Logo on top of the pivot point housing.

I've had difficulty finding any information on Mission Tonearms. The tonearm appears to be well designed and of rugged construction. Are they considered to be good tonearms? Are they comparable in quality to Rega 250/300s. Can anyone direct me to websites that have information on Mission tonearms or send me information?