I have this old set of S&W Handcuffs with an original box.

I have not seen this type of box before with only an end label and no other S&W markings or printing on the box.

The cuffs have a 3-digit serial number and there are two keys.

My questions are:

From what year(s) would this box with the label be from?
And are these cuff correct for this box??

Thanks for looking!

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Tom Graham SWCA #2303