Warren63 wroteI’ll try again !!!
Lack knowledge in this field Warren, but have a notion that this type of safe plate is die-cast in alloy. When my company back in the 50’s required quality nameplates for our reconditioned safes we acquired them from Butler Jones in Sydenham - now extinct. They were formed in Phosphor Bronze and looked splendid, even making the safes look shabby by comparison.
They were precise in their detail just like your Milner plates and as I recall they began to appear towards the later period in their production of heavy quality safes.
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