open the cylinder.
The Model should be on the frame just under the barrel.

AFS

I'm told that number is not the model number. The Number is 405 and there is also a "V" stamped above the number. I've found nothing about Rossi having a Model 405.

have you tried this:

Rossi USA - Find My Model

If your serial number does not return a result, please call Customer Service at 305-624-1115.

Been there too....doesn't recognize my serial number. I haven't called the number yet though. I am told that they try to charge you for that information.

Found this:

Rossi model number 31 had a 4" barrel and was discontinued in 1985. Model 68 came with a 2 or a 3" barrel. There is no model 38 Rossi. Model 88 and 88/2 only came in stainless steel finish. They also had a 2 or 3" barrel. Rossi did make the "Rossi Double Action Revolver" which has no model number. It was 5 round in the 38 special caliber, came with 3 or 6" barrel, adjustable rear sight, fixed ramp style front sight, blued or nickel finish, wood or plastic grips, and was produced from 1965 to 1991. Since you are not able to find the model number, it is very likely this is the gun you have.

I think I've answered my own question about the model of the gun I have. Based on the attached picture, I believe I have a model 68. My gun is identical to this except that it is nickle plated (and has a custom grip). I've found several models out there that look a lot like mine except for one major difference. On my gun, and the one pictured, the cylinder release button is a series of round circles. I've not seen that in any model other than the model 68.

http://i105.photobucket.com/albums/m...ssiModel68.jpg

Rossi did make the "Rossi Double Action Revolver" which has no model number. It was 5 shot in 38 Special caliber, came with 3 or 6" barrel, adjustable rear sight, fixed ramp style front sight, blued or nickel finish, wood or plastic grips, and was produced from 1965 to 1991.
and i have 1.