Found on numista.com Here's a link: https://en.numista.com/catalogue/pieces5413.html I don't collect foreign coins so I wouldn't know where to find info on how many varieties there are.
Thank you Thomas for responding. It appears that I have an overdate rather than a re-punched '9' per Thomas' response and link. Thanks again... SRS
Very common thing on Peruvian coins from that era. Many of the Soles coins from the mid to late 1800s have overdates, in some cases it is harder to locate an example with a clear date for some years than a coin with an overdate. Not much premium for any of them that I am aware of.
Thank you princeofwaldo for your response, with which I agree. My interest is to document some these items found in my collection for future collectors. Many are never noted in the literature and thus, given little respect. SRS