What is the specs for a us revolver co 22?

You will need to define "specs". The guns marked US Revolver Company were made as a lower cost firearm by Iver Johnson in the early 20th century. They lacked the transfer bar safety feature of the IJs, and were made in 22, 32, and 38 S&W calibers, in a hammerless and a hammered version, different barrel lengths, blued and nickeled. Values are relatively low, depending on condition, anywhere from $50-$150 for an Excellent specimen.