Stewart Warner
Stewart Warner speedometers are on American made mopeds; 1980-83 AMF Roadmaster 140 and 1979-82 Murray models. They are mounted inside a Peterson PM404 bullet-type headlight. The anti-clockwise speedometer says Peterson Manufacturing Company. The odometer digits are vertical not horizontal.
Murray# price SW 3.1/3.1
1 313607 $55 speedometer head
2 313608 $39 speedometer cable
3 313612 $29 speedometer driver