Hi there,

how is it possible to spot the difference between a 120 and 220 Super Rollex Back?
Sometimes the type of film is just written on the side, but in this case I do only have those two pictures, and the seller can't tell me.

6x7:
http://imageshack.us/f/844/img17371.jpg/ (Srn.: 1135334)
6x9:
http://imageshack.us/f/856/img18561.jpg/ (Srn.: 3965004)

I hope someone can help me with that..no, wait..I know that someone can help

Thanks in advance

Cheers

Toby