To me a true snubbie has a 2" barrel. I'll accept that a 2 1/2 will slide into that category as well, but I'll draw the line at anything over 2 1/2 inches. My opinion is a 3" inch is NOT a snubbie.
Chief38
Egg-Zactlee...
And, a 2-1/2 Inch only really works if it is a .44 or .45, for it to be a ("True") Snubby.
Othersise...2 Inch for .38s and anything smaller.
When the pre-detective Special was being introduced by Colt, I think it was simply called a 2 Inch Police Positive Special. The Colt 'Bankers Special' was a 2 inch Police Positive, and, was called, the 'Bankers Special'.
When the 2 Inch 'Military & Police' was being introduced by Smith & Wesson, far as I recall, it was simply called a 2 inch 'Military & Police'.
'Snub Nose' was popular slang, as was 'Belly Gun' ( as Texas Star reminds )...these terms were not used by Revolver Manufacturers or Dealers, far as I ever heard of.
Did Smith & Wesson even have a name for the 2 inch New Departure/Safety Hammerless?
Iver Johson ( and I expect, H & R and others ) had called their .32 and .22 Calibre 2 inch Break Tops 'Bicycle Guns', and, this may have also included their .38 S&W Chambering ones, but, I am not sure.
I think S & W did call their 2 Inch Safety Hammerless .32s 'Bicycle Guns' for a very short time, in the 1890s, but, again, I am not sure on that.
If anyone knows, please do tell?
P