• Antique Knapp Monarch Build-a-Motor Cast Iron Toy 1930s  erector set compatible

    Antique Knapp Monarch Build-a-Motor Cast Iron Toy 1930s erector set compatible

    Hard to find Cast iron motor compatible with erector sets. Untried due to cord condition. Found with an erector set from the 1920's . See pictures for identification

    $40.0
1