Hi everyone!

I thought that maybe someone here could help me to find out if a certain type of Arca Swiss bag bellows is compatible with my needs.

There exists a variant (on 171 x 171 frames) that is made of a kind of black synthetic "leather" (not the grey vinyl model). I was unable to find it in any catalogue or list. I thought it might perhaps originally belong to some pre f-line series. I would however like to use it with my Arca Swiss F-metric w/microorbix (also 171 x 171). So the size is alright, but with the different models there might still have been differences in the way the frames attach to the standards.

So anyone knows these bellows? And could anyone tell me for sure if they will either definitely fit or definitely not fit the camera?

Thank you!