I'm probably going to set off a firestorm with this, but I have to ask.
Does anyone out there recall any details on the change Smith & Wesson made to the 103 and why? The differences between the first ones and later ones were:
Serial Number: Early ones had an alphabet letter at the beginning of the serial number, later ones were all numerical.
Ratchet Bow: Early ones had the "cross-hatch" strike across the bow, about 2/3 the way up on the tooth side with the teeth facing to the right. Later ones lacked this. Also, the early ones had a full tooth at the top of the ratchet, later ones had a half-tooth at the top.
Bow Dimple: Early ones had the rectangular dimple, later ones had the round one.
Swivel: On early ones, the double bow housing was slightly pressed out and the swivel operated inside. On later ones, the area was completely stamped out and a wide washer installed in which the swivel operated.
Links: Early models had "short" links that made the overall length of the cuffs about 3/8" shorter than the later ones.
Lastly, has anyone ever seen a 103 with (i) the Springfield address, (ii) stamped patent pending on the single bow and/or (iii) with a single double locking slot on the keyway side only?
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Thanks Terry & Dorson. The link to the photo was very helpful, although I'm now even more curious about the serial number thing.
So you'll know, I spent quite a few years in the procurement section of a police department. I got to play around with all the new stuff when it came out, which was always fun.
When S&W came out with the 100 series, the samples we got were of the nickel 100 only; none of the stainless steel or high security ones. I do remember they originally only had one double-lock slot; when they came out with two slots, I was sold on those rascals and bought myself a set of 100's (Springfield address, square dimple, patent pending, no model number, etc.).
A year or so later, I decided to get some stainless steel ones (103). What surprised me when they came in were the extruded rivet heads, which the nickel model (100) didn't have. In comparing these with 100's that other cops had, I then noticed the change from Springfield to Houlton. What also struck me as odd at the time was that mine had a serial number with an alphabet letter and five digits (F72473) while the 100's I saw all had six digit serial numbers. I knew S&W used alpha numeric serial numbers on their handguns and figured at the time they were starting to do a similar thing on handcuffs.
A while later, satisfying myself that the stainless steel cuffs were easier to maintain, I bought a second set. I immediately saw that this newer set had a six digit all numerical serial number; after messing with them some, I began to see all the other stuff (round dimple, longer links with a different type of weld, cross hatch on the bows gone, change in the last ratchet tooth and the stamped out swivel housing).
Around this time, the NIJ standards came out. For liability reasons, everybody thereafter had to have NIJ approved cuffs, which really ticked off the guys with Model 90's since, no longer being in production, S&W hadn't submitted them for testing, so all those guys had to buy new cuffs.
I've long wondered if the reason for the changes S&W made had something to do with the (then) new NIJ standards and testing, particularly the change to the swivel housing. Stamping out the swivel slots and adding a retaining washer to the swivel would increase manufacturing cost, but would probably be less likely to fail as opposed to the earlier pressed out housing with no washer. I'll admit that I'm too cheap to tear apart any old cuffs to see what's going on inside with respect to the swivel, and am relying only upon external looks.
Okay, now what has really got my curiousity up is the serial number, particularly after looking at the variety of photos and such of early 100's and 103's throughout the Forum. Other than the extruded rivet heads on the 103's it seems the changes in the 103 mirrored those of the 100. In the picture of Atame's 103's, which are clearly older than my first set, they have a six digit all numerical serial number (347507), which is a higher serial number than my second set(318414) which are undoubtedly much newer than his. Since NIJ standards require a serial number, common sense tells you that they would be sequential. On the 100's I've seen the numbers (all numeric) start out low (six digits with zeroes at the beginning in old cuffs) and get higher. On the 103's the number starts out really high (Atame's cuffs), changes to alpha numeric (my first set) then go to all numeric in a lower serial number range (my second set). That is just plain weird.
I do recall a guy in the evidence section one time griping that S&W was of no help in helping trace handcuff serial numbers (unlike Peerless). What's really been bugging me is that the alpha numeric serial numbers S&W used on their handguns, while a little complicated, had a logic to them whereby you could track different models and changes within a model over time.
Oh, well. Even if I never get this figured out, the sun will still come up in the morning.
Thanks again guys.