OY,
US Revolver Company was a housebrand name for guns made by Iver Johnson for sale to Sears, Monkey Ward, etc., at prices somewhat lower than their own branded guns.
They use the same designs and actions as Iver Johnson revolvers, but are not fit/finished to quite the same degree.
They're of the same general quality as other top breaks of the period by IJ, H&R, and a little bit below the standards set by S&W.
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Beware the man with the S&W .357 Mag.
Chances are he knows how to use it.