Underwood 315 portable typewriter
Similar to the Olivetti Dora, the Underwood looks the part both on the outside and inside since it basically is a Dora manufactured under a different name in Yugoslavia - but it is not entirely the same. The both machines run and type differently, with this being having a heavier typing and also a very loud bell, which one can think should be standard on all typewriters. The difference comes out when you type, and I much prefer this one to the standard Olivetti Dora, found in a post before this one.
Photo and recording by Erik Pålsson.