Does anyone know what this late 1800s art nouveau sterling silver decorative wing and prop pin is worth? One side of the plate attached with the chain show engraved letters ELM and the other side says sterling.
I agree a WW2 era sweetheart piece, but not being trench art. My guess it's filigree jewelry made in Malta at the time and purchased by an airman to send back to his sweetheart or mother back home? I don't know what the value would be, but some do collect and focus on these vintage types of jewelry.
On another note I looked up info on the technique of filigree jewelry and found it can come from all over such as Spain, Portugal, Indian and I even found a vintage wings and prop piece similar to yours made in Mexico priced just under $40. on Etsy. Filigree is an ancient technique of gold and silver work https://en.m.wikipedia.org/wiki/Filigree Here's a small silver filigree Spanish galleon I picked up in my travels and I can only think it was produced in Spain or Portugal? I guess there's really no way to tell for sure where your piece was made?