Steve, It looks to me that the differences between Roger Kesslers' lantern and yours are simply yours is an earlier version without the later added reinforcements, improvements,or production changes found on later Dietz Underwriters Mill Lanterns, otherwise I don't see any tooling differences that aren't consistent with those used by Dietz. The Dewey name on the fount is curious, but I would ask at what point in time did Dietz make their promise, before or after this one was manufactured. But I'll wait to see what BobbyB has to say

Best regards,

Willis