The color cased Remington "58", however, is not authentic. Only the hammer was color cased on that revolver. Also, the Italians color case the 1875 Remington, which is not authentic, that revolver had a color cased hammer and loading gate, everything else was blue, as was the 1890.
Colts were all color cased, except the Patterson. From the Walker on up, Colt color cased the frame, hammer, loading lever and ram. The only Colts all blue were the Target guns, often the Bisley.