This Corona no. 3 folding typewriter is a low serial no. 93, 940 dated from database is 1916. Case has stencil marking name of S.W. McARTHUR M.R.C. USA. This makes me think it could possibly be from World War one, maybe Medical Corp? The name maybe had a U in front of the S.W. making it a U.S. If someone knows, please let me know. Case has glue or tape residue on it, see pictures. Case needs a little work to make it latch. The typewriter is not worki...ng, needs attention. The carriage pull string is messed up also. Will be double boxed for safe shipping. FedEx ground shipping is $22.00 Cont. U.S.