I have pictured every angle and include other details in the pictures, please see them all.

Selling as for parts not working, but if I needed one I would use it. Could be BSA B33 or could be BSA Gold Star, sorry I do not know exactly what it came off.

Some movement in the  caliper  instrument will account for the numbers being slightly different in the pictures, but should ok and give the buyer some idea of size.

I think the pin is new.

Thank you.