clear Masonic flask

edited April 2017 in Question and Answer
Clear Masonic flask, about 7 1/2 inches high, the clear glass has some black specks in the glass, with a mold seam visible around the bottle and disappears at the neck. The pictures tell the rest of the story. Can you let me know the history and the value of the flask.


  • Masonic flask
  • Hi and thanks for posting!

    You have an authentic early 19th century Masonic flask - it is listed in the McKearin flask charts as Group 4, either #1, 1a or 2 - I cannot tell from your photos which it is.

    One does see these in clear and also moonstone (white milky appearance to glass which is definitely in the glass and not stain) Either of these colors is considerably scarcer than the most common aqua for this mold.

    These flasks were blown at the Keene Marlboro Street Glass Works in Keene New Hampshire. Assuming there is no damage, and even minor flaws have a large affect, I would value this in the $1000-1500 range

    Other, rarer colors can be worth considerably more!
  • Thank you very much.
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