I have the same one. My dad bought it in Peru in the 60's and it is indeed silver and 14K gold. Mine is stamped 14K as well as the same R number as yours, so it must be a model or style not serial number.
Rating
Peru Bracelet and Gold Testers by: Yvonne
Hi Sheila what a lovely Bracelet! I like the hinged stationed too.
Yes, Peruvian bracelet, sterling silver, R130596 will either be a registration number, patent number of design number. The only way to positively identify the yellow metal is by testing it. There are gold testing kits on the market.
This gold tester also tells you the composition of the gold.
The other alternative is to take the bracelet to your local jewelry and let them test it, to determine if the metal is gold or not.