✨ Vintage Comptometer Enamel Pennant Badge ✨ A charming piece of office history: a pennant-shaped pin badge for the Comptometer, the famous mechanical calculator. Rich cobalt blue enamel with the elegant gilt script logo and “Reg. Trade Mark” beneath, on a waving flag design. 🏷 Details • Maker: Greenduck Co., Chicago • Material: gilt metal [...]