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RBNV-44,,, (blue Bisley New Model Vaquero with color case finish) in 4-5/8" bbl, serial number range of 57-21745 to 58-55369. The stainless version, serial number range of; 57-13485 to 58-96012.
So to answer your question, yes they were made. Notice that these are the 2 digit prefixed guns, meaning they are the same frame size as the normal Blackhawks.
I couldn't find a reference immediately about the New Vaquero, (smaller main frame,) being made in the Bisley style. I'd have to dig a little more to find out.