History and Basic Info
The Royal KMM was manufactured by Royal Typewriter Co from 1939-1946 and is the successor to the Royal KHM . The KMM was Royal's standard that introduced Magic Margins. These are fairly common standards, as many were made and preserved. These are nice, solid machines, and are a great collection to any addition.
Royal KMM bells often don't like to work. This can usually be fixed by flushing the end of line lock and bell trip mechanisms.
Here is a manual for the Royal KMM from Richard Polt's site: Click Here