The Caseworks – BWIPS Vendors and Brands 2023 The Caseworks create handcrafted Military Coin Displays and Flag Cases. You can view a vast collection of The Caseworks items at the Pen Shows After Dark at The Baltimore/Washington International Pen Show 2023. Meet The Caseworks at the #BWIPS 2023 Baltimore/Washington International Pen Show 2023Enjoy the luxury of seeing pens from around the world