Piper PA23-250 Aztec RPM Gauge/Tachometer P/N: 450-728 (25691)

Vendor: Piper

Piper PA23-250 Aztec RPM Gauge/Tachometer 

Part Number: 450-728 

As removed from a 1968 Piper PA23-250 Aztec. 

Used, not tested, sold as-is.