Thanks Max, I do know about the person in NSW who makes them but they are still expensive and sought after. But this is hopefully who I will get my reproductions off.
I have one other question please Max. I have a bunch of older victa chokes. I'm looking for as much information on a couple of them the first one I know nothing about is an old style victa choke. It has the translucentish yellow but no markings anywhere, its on the far right in the first picture, the others are the black ones. I have 2 victa ones and one that I have no idea about.