The "B" is not part of the S/N, it only indicates the gun left the factory with a blued finish...
...Ben

i see guns on gun broker and guns international with that same special factory finish,,,I don't think its ever had a refinish.
The grips are “rough”, but match the rest of the gun well.I think you are right. I have been doing some research on older .38 M&P's. The B indicates that the firearm left the factory blued. It is smaller than the numbers and a little bit away from them also. It has the small S&W logo on the left side. It has wood checkerd grips that are really in great condition. It has .38 S&W SPECIAL CTG stamped on the right side of the barrel. I have tried posting pictures but just can't get them to post.
That one is definitely WAY earlier than a 10-6.I finally got my pistol today. Can not wait to take it to the range. It seems to function really well. The cylinder has no play and the timing seems perfect! All 3 serial numbers match also.
I just bought a S&W Model 10-6 off gunbroker. The seller told me the serial number is 485190. After doing a little research all the ones I saw the serial number started with a letter followed by numbers. Is it possible for a model 10-6 to have a serial nomber that is all numbers?
No. The prefix should be either a C or a D. If it is a C, then it would be a very early 10-6.
Thanks for Posting.
This thread touched on so many aspects and issues of buying online. Right down to the last/previous post!
I’ve seen many model 10s that listed the assembly number as the serial number. What’s important to Me is that the correct serial number is recorded on the final paperwork that (I) receive. I just happened to have come across a close friend of your 38 Special
The mushroom, says pre 1928 on Our 5” inch,, 38s
I think this is a 5” …1905….
Are you saying that because it has a 5" barrel? If so, why?It may be older than 100 years old then.
Yes. Do not store it in a leather holster or any other kind of tanned leather.I have it still stored in the holster. Should I leave it out?