Thanks for the reply, but it says online that mad dog 20 20 originated in the 50s. Mogen David founded in 1933. The bottle is hand blown, tooled lip. The monogram has the letters m d t co
MTD Co MDT Co DMT Co DTM Co etc. Pretty sure the Co is correct. D may be distillery
The shape of the bottle (flask) is indicative of a whiskey or liquor. It is unfortunate that there is no city or state on the bottle. The product identification would have relied on the paper label that is missing.
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