Help identifying model of older S&W revolver

[Man_d0wn]

My coworker inherited 2 older S&W 38spl revolvers. They look to be in working order but dont seem to be serialized or i over looked it. They both look the same jave 3 screws on the right side 4 if you count the grip screw. 1 has the number 13 stamped on the left side and on the right side just has the trade mark stamp and made in the usa.
The other has no markings on the left side and the right side has the same trade mark and made in the USA. But under that is says
"Maracas registradas
Swith & wesson
Springfield mass"

Any help would be greatly appreciated

[Ballistic Therapy]

Open the cylinder and see if there is a number stamped on the crane.
If there is it might be the model number.
Some of the older ones had parts numbers stamped there also.

If not it is probably a hand ejector.

A picture would be nice.

[QuietM4]

There are many different models of Smith & Wesson revolvers that were made by Spanish companies...

Unless you can post a picture, we won't be much help.

[Boriqua]

There should be a s/n at the bottom of the grip frame and where Ballistic Therapy mentioned.

That would help but pix would certainly be useful

[Man_d0wn]

Thanks ill have him bring them again to check them out a little closer.

[Ballistic Therapy]

To make it easy , get the serial numbers and call Smith and Wesson.
They will tell you what it is and when it was made.

[Harrier]

The trade mark on the front right indicates it is probably a version of the M&P since S&W started marking the frames after the Spanish made copies (IIRC) in the early 1900's.
Pictures would help a lot as there were several changes over the years. The serial number should be found on the bottom of the metal grip frame, under the barrel where the ejector rod covers and on the back of the cylinder. The number inside the yoke is the assembly number.
Don't count the grip screw,or the strain screw on the front of the grip frame, however the grip may be covering a sideplate screw. On the early guns there was a screw in front of the trigger guard, one on the front side by the marcus reg. mark, one above & behind the trigger guard, one at the top by the hammer and one at the bottom rear of the sideplate thus the 5-screw designation. The screws at the trigger guard front and the bottom rear were eventually eliminated. It could be a few different calibers but likely is either 32 Long or 38 Spl.

Whatever you do... Don't try to take the sideplate off, especially by prying up on it- you will burr the top by the hammer- the proper way to remove the sideplate is to strike the bare gripframe with a wood or plastic hammer and let the vibration pop it loose.

[was21]

2nd the warning by “ Harrier” on removing the sideplate. There are a lot of ‘ gunsmiths’ that don’t even know how to do it correctly!
Had to show a few.