Westighouse 50 Amp 3 Pole Plug-in Circuit Breaker. Condition is Used. Shipped with USPS Priority Mail.  I am a retired electrician.  This circuit breaker is from a job, has been tested for continuity, and electrical grade lubricated.  It has very firm switching. It is a QUICKLAG P.

Cat. #HQP 3050H. It is rated for 10,000 AIC at 240 Volts.