You posted this under the Iver Johnson topic and that company made a lot of revolvers in Fitchburg, which isn't far from Chicopee Falls. The only arms maker I find in Chicopee is Stevens, but I have no records of a Stevens revolver. Are you sure it is not a tip-up pistol?
Although the company dates back to 1864, the name "J Stevens Arms Co" was not used until after the company was bought by Savage Arms in 1920. In the mid 1940s, the name was shortened to "Stevens".
Massachusetts Arms Company: Trade name used by J. Stevens Arms and Tool Company on firearms for Blish, Mizet and Silliman Hardware Company of Atchinson, KS. The name is also attributed to Crescent Firearms, but a single shot with a Chicopee Falls address is almost certainly a Stevens.
The Springfield Model 84 was made by J. Stevens Arms Company, Chicopee, Mass.
this is a misprint. It should be a model 75 rather than a 57 as it appears in the question.
Sometime between 1920 and 1948.
About 1886, if the marking is J. Stevens Arms & Tool Co.
.22 bolt action rifle, obsolete. email@example.com
$75 in top condition. firstname.lastname@example.org
Mass. Arms of Chicopee Falls was a large gunmaker that later became Stevens. Does that match up to your gun? No reference I have lists Chicopee Arms. S0- what did you want to know?