Originally Posted by Robert McClure
I just replaced the light-trap strips on some old German 9x12 filmholders with the soft side of a velcro strip. Think I read about it on one of the forum threads, in fact. It worked great! I just bought the self-adhesive type of velcro ($1.79 a foot) and cut carefully. This was for a Rietzchel Clack camera that hasn't been used since WWII. I also replaced the light traps on the camera. The fit is a bit tighter, but no leaks yet...
http://photos-collection.com/html/folding_clack.html for a picture of a Rietzschel