Since Pedersoli at some point owned Cherry creek , maybe your lock was made when they were making locks. It may be worth a try to see if they would have something that may work.
When I was searching for a sear spring for myself, I went to TOW and found a few candidates that looked promising in their replacement items for various manufacturers.
When I called them a fellow went to the stock and took measurements for me. Nice folks there. Biggest issue was over-all length, position of the loop for the screw and the location of the fixing pin point that goes in the side of the lock. Everything was just a bit too off, and couldn't be made to fit for my Belgium lock.
I am not saying not to try them, just what my results were for a 100 year old lock.