3mm Basic Lowercase Typewriter Metal Letters Stamping Set by ImpressArt. Add a sophisticated, timeless accent to your craft and jewelry designs with ImpressArt’s Typewriter letter stamps. This vintage typeface is clear, recognizable, and easy to read. It’s perfect for typing a nostalgic touch into your unisex, stamped creations. ImpressArt Basic alphabet & number metal stamps are rated for stamping on soft metals. Rated for stamping on Alkemé, aluminum, pewter, copper, brass, silver, gold, & other metals up to 56HRC Rockwell Hardness. Lowercase includes full lowercase alphabet and question mark “?” stamps. Basic stamps are lightly coated with oil to prevent rust. Face ImpressArt logo toward you, when stamping; to ensure all of your design stamps come out right side up. Sold as one set.