CALIFORNIA WARNING: This product can expose you to chemicals, including lead and DEHP, which are known to the State of California to cause cancer and birth defects, or other reproductive harm. For more information, go to https://www.p65warnings.ca.gov.
Normally open lane change leaf switch assembly with gold plated contact points.
Used on many brands of early solid state pinball machines. Comes with diode installed on terminals.
Reference:
B-9951B-9951-1
May substitute SW-1A-139