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  1. JB1975
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    Help . Looking for more information on this furnace. Limited online resources

    I have an antique cast-iron furnace marked “INVINCIBLE FURNACE.” Based on historical research, I believe it is an Invincible Gate City...
    Thread by: JB1975, Aug 22, 2026 at 5:58 AM, 0 replies, in forum: Stove Forum
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