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.
Integrated circuit 16 pin DIP (dual inline package) quad 2-1 DATA SEL/MUX used on many pinball machine circuit boards.
Reference:
74LS257
M74LS257AP