Here is one NOS Vintage Arcolytic twist lock electrolytic can capacitor:  160/120/2030 uf @ 350/300/300 vdc #CTM-3399.  In addition applied >250 vdc for over 15 minutes using my variable power supply, so believe capacitor is still useable.  However, not able to measure and prove that this electrolytic capacitor meets all mfr specs, so sold as is with no return.   NOTE: one more identical that can be listed if you need an additional unit.