Pan-M-Bob patent, US Patent Office, June 1959 (via Google Books)  | 
 
Pan-M-Bob 0 gauge Turntable, text states : One 3 Rail Turntable Lionel or Marx  | 
 
Pan-M-Bob 0 gauge Turntable, powered by 2 D cell batteries. Complete with tethered remote control  | 
 
Pan-M-Bob 0 gauge Turntable, powered by 2 D cell batteries. Complete with tethered remote control  | 
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