These dinky little Olivetti Lettera 22 portable typewriter handbooks came in true pocket-size editions. The first one, from 1955, with the black cover, measured 3 5/16 inches by 4 7/8 inches (8.4cm x 12.3cm). This is for the original Lettera 22, in taupe with an embossed brand name on the paper plate. The second handbook, from 1963, came in a red plastic binder, 3 1/8 inches by 4 3/4 inches (8cm x 12cm). It is for the latter model Olivetti Lettera 22s, in pistachio and glaucous.