Hello, this is a National 600 Bowling Club lapel/hat pin.
Brunswick Rare Vintage Hard Shell Bowling Bag & Vintage ABC Vulcan Bowling Pin
Vintage Empire 'e' Bowling Pins and Vintage 2 Fisher Price Plastic Stacking Ring
15 Vintage Mini Wooden Bowling Pins 4" with 2 Wooden Bowling Balls Antique
Vintage Brunswick Max Bowling Pin Set Of 2 Permit No. 334 Made In USA 1970s
Vintage Yellow AMF Bowling Pin For special events Or Crafting Regulation Size
