 1 This is an EXTREMELY unusual brooch for D&E. Most everything about is is unusual. I suspect it was a design desired by a customer and these unusual elements were the only way to construct it as desired.
Also notice the filigree back on this is not the same filigree as seen on the few D&E pieces that do have filigree. (as seen in the other examples)
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|  3 You will notice this design has both a filigree back and and support wire.
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 5 notice the filigree on the back which I guess is done instead of a support ring. See the next brooch from the same design family but it does not have the filigree back
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 9 Very unusual filigree back earrings
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 13 This looks sort of like a filigree backing but is really is not. it is just the front filigree showing though to the back.
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