<p>Hello .... I just purchased a Mamiya Universal which appears to be in great shape. The 6x9 film back needs new seals which I located on line. However the M adapter back moves slightly sideways. When I take it off there is a foam seal on the body in the channel that the M adapter fits into. I cannot find this precut seal online.<br> Does anybody know of a source for this particular seal or a DIY that works?<br> Thanks ..... Mike</p>