Made in the United States! This is an Air Variable Capacitor. The 365pf Variable Capacitors were very common years ago. The manufacturer I use now makes a 384pf variable capacitor. Older versions from this manufacturer were rated 381pf. The extra 20pf of these from a 365 pf capacitors is small so they should work fine to replace any variable capacitor that calls for 365 pf .
The 384pf Variable Capacitor is very popular with Crystal Radio Set ( Xtal Radio Set ) builders and is still popular with Ham Radio enthusiasts using them in all kinds of electrical circuits.
These 384pf Air Variable Capacitor are good quality ball bearing front shaft.
Minimum capacitance: ~15pf