that is a weird one alright and at first glance it could easily be dismissed as a casting off an original ???
What are the measurements and weight ?
When you say "zinc" does it bend like lead or is it firm like zinc ? ( test this carefully because the badge looks to be repaired. Do not try to bend where the repair between the oak leaves and the laurel leaves is or you will snap it in half )
Looking at the images on my monitor, the four things I can not work out;
1/ looks to be an original "BSW" maker mark. Is it stamped in or cast in ?
2/ the hinge & pin are correct for a "BSW" Are they die struck or cast ?
3/ the eagle head looks to be a seperate part which has been reapplied or badly applied. What is it made of ?
4/ the front of the badge has very good oak leaf, laurel leaf, swaz & eagle head detail. There is no signs of pock-marks/ craters from casting on the front that I can see. Is the detail crisp when held in hand or not ?
The reason I am asking these questions, I am wondering if this is an original which has been broken, repaired and then replated ???
Is that a faint fracture line ( plated over ) on the reverse side that I see on the left where the "sew holes" look round between the oakleaves joining the laurel leaves ? The sew holes on the other or right hand side, looking at the reverse are the correct triangle shape for "BSW" and do not look to be repaired.
Also the more I look at the reverse, the more I see signs from repairing the badge on the left hand side, hammering the eagle head back on after replating and the repair to the hook. I do no see any serious pock marks or craters from casting on the reverse.
Please check these points carfully before you came to a conclusion about this one,
p.s. "fdodge" is correct, please take some images without the flash on and add them to this thread