ancients bronze copper lead composition — Collectors Universe https://forums.collectors.com/ Mon, 03 Aug 2026 09:56:52 +0000 en ancients bronze copper lead composition — Collectors Universe Ancient elemental compisition https://forums.collectors.com/discussion/1124497/ancient-elemental-compisition Sat, 25 Jul 2026 13:53:48 +0000 World & Ancient Coins Forum Numismaphile 1124497@/discussions I’m trying to decide if these go in the black box or have some merit. I haven’t attributed them yet but a first pass with my XRF shows mostly copper and lead with traces of tin, platinum, and other metals. Opinions welcome.

]]>