MonoPoly on prewound Class 15 (A-style) bobbins. Smoke. 220 yds. per bobbin. 1 dozen. MonoPoly is .004" (.1mm) in diameter (90 denier) = Very fine thread.
Rediscovered a 1994 “Boston Edition” Monopoly, with relics like Boston Edison and Filene's. No idea why Boston Common is $60 but Swan Boats are $350 : r/boston
Your Book Review: Progress And Poverty - by Scott Alexander
Class 15 MonoPoly Clear Prewound Bobbins - 810233027794
Prewound Bobbins
Seven Days, October 18, 2023 by Seven Days - Issuu
Thread - Page 33 - page 33
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Superior Threads Prewound MonoPoly Bobbins 12ct SMOKE - 123Stitch