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Help with ID hallmarks on European 19/20ct silver powder box

I ask your help in identifying these hallmarks ; box looks like a typical German work from the late 19th or early 20th century, but can not determine with accuracy the hallmarks ; looks to me like 800 (purity ) , Trident ( ? ! ) , the initials AM or AN ( ? ! ) .
Thank you in advance for your help.
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