Good luck!
I have been looking for years for info on my GOROSABLE and my RENO SxSs with no luck.
EBIR SPAIN was the shotgun capital of the world.
There once was so many gun makers there they were hard to keep track of.
Some makers just built guns for other companys and put what ever name they wanted on them and hence can be very hard to find anything out about them.
I am sure that some of the makes would have interchangeable parts but which ones, WHO KNOWS!
It's like the old FOLSOM ARMS company.
At one time thay made cheap shotguns under no less than 100 different names.
Try and track one of those down.
I know, NO HELP!
SORRY!!!
Again, good luck to you.
LONGTOM