vintage international quartz crystal oscillator F 0.54 pre owned #1

Description

This is a Vintage International quarts Mfg. type F 0.54 crystal oscillator used untested it is marked  Crystal 9895.000 kc chain 39.58 mc cal temp 90 F, error at 80 F +.00002%, type F 0.54 serial number R4740. I ship worldwide USPS