Kadee 1929 Magne-Matic(R) Knuckle Coupler Height Gauge -- For AAR Type E Couplers

#1 scale die cast metal G scale multipurpose type E coupler height gauge. five tools in one:
 
1. Provides instant visual reference of proper coupler height.
 
2. Gauges car underbody height from rail.
 
3. Gauges track width.
 
4. Gauges wheel width.
 
5. Uncoupler gluing jig.