HANDCUFF QUESTION

Looking at a pair of very old, vintage handcuffs with "SPF" stamped on them. Does this stamp signify the Singapore Police Force. The entire stamp on each cuff is "SPF 465 133"

Thanks

Mayby,

here the Hyperlink from the RCS cuffs with bowmarks

http://www.ebay.de/itm/110844508319?ssP ... 1423.l2649


And here is the authority

http://www.spf.gov.sg/