Pi tie tack Math Tie Pin Math Pi Symbol Tie Tack Retirement Gift

Handmade pi tie tack pin, made in solid sterling silver.
Size is 8 mm with 1.5 mm thick.
Ideal wedding anniversary gift.
This item will come in a gift boxed.

Matching cufflinks.
https://www.etsy.com/uk/listing/531470288/pi-cufflinks-math-cufflinks-math-teacher?ref=shop_home_active_1

Matching pendant.
https://www.etsy.com/uk/listing/280932746/pi-necklace-teachers-gift-math-jewelry?ga_search_query=math&ref=shop_items_search_2

https://www.etsy.com/uk/listing/208246020/math-necklace-math-jewelry-geek-math?ga_search_query=math&ref=shop_items_search_3