The two with hoses are fully functional. The one that fits in spark plug hole has a dry rotted rubber tip.
Vintage Automotive Niehoff Cable Booster Jaws 60-501
Vintage Niehoff T-47 0-300 PSI COMPRESSION
VINTAGE NIEHOFF SPECIALTY TOOL COMPRESSION TESTER HOSE REPLACEMENT LOT NOS #T47E
Vintage Niehoff Chrome Ignition Timing Light *Untested* Collector’s Item
New NOS Vintage T-26 Niehoff Compression Gauge Made In USA Original Box
3 Vintage Niehoff Compression Gauges Made In USA Original Box And Paper Work
