Not sure of your question- The US Revolver was a second brand of the Iver Johnson Company. It was a well made but inexpensive revolver. They were made in .22, .32 S&W, and .38 S&W calibers, in a hammer and hammerless version. Value will be based on condition and the exact model, but typically runs around $100-$125.
No published sn data
Seldom exceed 100 USD
2006
1871
1912
1910
20-80 usd
Early 1930s
The US Revolver Company produced various models of revolvers in the early 20th century, and a revolver with a .32 caliber, five-shot configuration, and a serial number of 30320 would likely date to around the 1920s. However, exact dating can be challenging without specific model information, as production records for US Revolver are limited. For precise identification, consulting a firearms expert or reference guide specific to US Revolver models would be advisable.
A secondary brand of the Iver Johnson company, your US Revolver Company .32 was probably made between 1915 and 1917.
1920
No published sn data. @ turn of the century