Hello Tom,
Your comments caused me to rethink my earlier statement. I searched until I found that picture, and I was mistaken. The holster is not SA-marked.
It does appear to have the same construction as the shorter Finnish holsters with the same leather tube for the cleaning rod sewn next to the magazine tube. The rivets also appear to be similar, if not identical, to other Finnish holsters I have seen. I uploaded a picture of the front & back of the holster.
I would appreciate any comments or observations.
Thanks, Luke