unknown. apparently.
1957
R. Mark Mathews has written: 'Matching clients and services' -- subject(s): Information services, Social service
There's no "R" mint mark. The mint mark position on a Seated Liberty half should be below the eagle. If the "R" is elsewhere your coin has been altered and has lost most of its collector value. If the R is where the mint mark should be please check it with a good magnifying glass. There's more information at the Related Question.
a historical background is a background of the history in what u r looking for
Mark R. Killenbeck was born in 1948.
Mark R. Shaw was born in 1889.
Mark R. Shaw died in 1978.
Mark R. Kravitz was born in 1950.
Mark R. Dybul was born in 1963.
Mark R. Beissinger was born in 1954.
Mark R. Bacon was born in 1852.
Mark R. Bacon died in 1941.