Art.com First Computer Patent 1889 Framed Art Print, 21 x 17", Black First Computer Patent 1889 is a Framed Art Print expertly set in a CHELSEA Black frame with Crisp - Bright White matting. 21-Inch-H-by-17-Inch-W-by-1-Inch-D Produced on medium weight cover stock, this art reproduction is coated with a silken finish that protects the inks and creates an elegant look. An acrylic coating protects the stunning print from dust, moisture and fading. Your art is handcrafted in the USA and will arrive ready to hang with mounting hardware included. Use a light feather duster or a damp cloth to clean your art. To remove stains, use a lint-free microfiber cloth. Also, avoid cleaning with an ammonia-based cleaner.