IRS Shirt
- $33.00
Tee shirt commemorating the moment Problem Library became an official non–profit organization.
White 100% cotton
Design/typography courtesy of the IRS.
![](https://problemlibrary.org/app/uploads/2023/02/PL-Merch-501c3__ss_white_front.jpg)
Tee shirt commemorating the moment Problem Library became an official non–profit organization.
White 100% cotton
Design/typography courtesy of the IRS.