LEEDS & NORTHRUP CO. 

Philadelphia

HISTORIC Vintage 

LAB VOLTAGE STANDARD 

Potentiometer 

1074150

Ford Motor Company Engineering

SL-551 (Ford tag)

Scientific Lab

Precision voltage meter

There are a few scratches and dents. Please see pictures. 

Wooden base. 

Black shiny surface. 

Two knobs on the back side are missing. 

The instrument is untested. 

No manuals.