Here we have an NOS Mercury & Mariner clutch dog for the outboard motors listed below. May fit other models as well.  Quicksilver part # 52-30941.  Box may have some wear or writing on it. See pics.

Mercury Mercury & Mariner Outboard Parts by HP & Liter 70HP 1413611 THRU 1566239 - 700 (6 CYL.) 

Mercury Mercury & Mariner Outboard Parts by HP & Liter 70HP 1413611 THRU 1566239 - 700 (6 CYL.) 

Mercury Mercury & Mariner Outboard Parts by HP & Liter 70HP 1413611 THRU 1566239 - 700 (6 CYL.)

Mercury Mercury & Mariner Outboard Parts by HP & Liter 80HP 1398630 THRU 1566239 - 800 (6 CYL.)
 

 GM5122011 
 

Shipping cost shown is for lower 48 - Alaska & Hawaii Shipping cost is more - email for quote. Thank you Geniemarine