Mike, I'm here, just a little late to the party!
sixhats, like Don mentioned, pictures of handcuffs & markings are essential to identify what you have.
Here are possibilities of S&W handcuffs & restraints from 1952-1979
Early model designations & year of introduction:
Model 90 – Dull blue or nickel standard model steel cuffs (1952)
Model 91 – Bright blue or nickel cuffs (1952)
Model 925 – Lightweight aluminum nickel cuffs (1958)
Model 926 – Lightweight aluminum polished bright cuffs (1958)
Model 936 – Stainless steel polished bright cuffs (1961)
Model 938 – Stainless steel cuffs, standard finish (1961)
Model 800 & 810 – Belly chain (1965)
Model 820 & 830 – Lead chain (1965)
Model 94 – Maximum security hinged model cuffs (1969)
Model 95 – Military Issue of a Model 90
There are also several variations of these models.
The numbers stamped on these cuffs does not help identify them.
Another possibility, are the Peerless handcuffs marked MFGD. BY SMITH & WESSON?
Waiting for pictures,
Dave