My Two Guatamala Cobs.

Guatemala indeed made cobs of a unique style, using the manual technique with dies made for the mechanical design used elsewhere.
They are indeed interesting and quite scarce :)
Your first one looks like a Felipe V real (or half real - depends on the weight) , and the second one looks like an 8 - but without date it's not possible to know which king it was made for.
Price of those rise when you have a clear denomination, essayer, and for sure the date.
They were often holed (as your first one) and worm like necklaces. From what I understood, many had trousers without pouches back then and it was a way to keep money. And they were appreciated as jewelry :)

Here is the best one I got :