Hi Mark,
From what I've seen, I don't think Schwerin were 100% consistent in the way they applied their finishes. On the example I've imaged above, it looks like the dark grey "finish" (possibly chemical alteration) is applied directly over the tombak (or over a VERY thin silver plate). On other badges I own, I get the impression that there was a thick silver coloured "plate" applied before the dark grey "finish", such that lightly worn points look silver but heavily worn points show tombak. I'd suggest Edgar's example is one that had a thick silver underplate. On Edgar's badge, there is plenty of tombak (red patinaed though, not a fresh yellow/brass colour) showing through the silver finish.
I've seen Schwerin badges cleaned by collector's who thought the dark grey finish was a patina! At least whoever cleaned this one didn't use steel wool (probably heavily buffed it).
Regards
Mike K
PS: as far as I know, the finish was not actually black - at least 60 years later it's not!
From what I've seen, I don't think Schwerin were 100% consistent in the way they applied their finishes. On the example I've imaged above, it looks like the dark grey "finish" (possibly chemical alteration) is applied directly over the tombak (or over a VERY thin silver plate). On other badges I own, I get the impression that there was a thick silver coloured "plate" applied before the dark grey "finish", such that lightly worn points look silver but heavily worn points show tombak. I'd suggest Edgar's example is one that had a thick silver underplate. On Edgar's badge, there is plenty of tombak (red patinaed though, not a fresh yellow/brass colour) showing through the silver finish.
I've seen Schwerin badges cleaned by collector's who thought the dark grey finish was a patina! At least whoever cleaned this one didn't use steel wool (probably heavily buffed it).
Regards
Mike K
PS: as far as I know, the finish was not actually black - at least 60 years later it's not!
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