Who made it?
Impossible to answer without the serial number.
Serial number data not available
1943
It was made in 1971.
Any pistol made by RG is worth less than the metal it is made from.
Could be German, Italian or US
AFAIK, Colt never made a single shot pistol
It was made in 1960.
impossible to answer without knowing who made it.
1981
Serial number