This spoon has the Hamburg-hallmark, year "E", and the maker's mark "Haegermann". There is a weird discolouration along one rim of the handle. Is it a plated piece? Or was the Hamburg-hallmark only used for the 12 lot items?
Forgot to mention: discoloration, patina and tarnish depend on exposure to elements and gasses. 12 Loth, having more copper in the alloy, may show reddish discoloration, but also depending where it was kept.