Help To Identify These Merchant Counterstamped Coins

Here's a link to the Brunk book ...

https://archive.org/details/2006mer...145/mode/1up

@Matu ... Offhand, I can tell you that the ones recessed in rectangles are potentially silversmiths and/or watchmakers. From my experience, forty-plus years of researching c/s's, it's not worth the countless hours you'll spend, trying to attribute stand-alone, simple initials. The recessed ones, hallmarks, are definitely worth researching; these, as are the surnames. It's been my experience that larger sized c/s's, 6mm or more, tend to be more difficult to attribute.

None of the c/s's shown are in my collection/database of 3,000 pieces. Thus, yours are all mavericks to me. All c/s's are rare in terms of numbers known. The great majority of them today survive in numbers of fewer than twenty specimens. Many thousands of mavericks await attribution, and that's what most attracted me to this genre ... going where few numismatists seriously venture. Researching your collection, you'll get great some insight for an article; this, even if you fail to make any positive attributions. For me, the journey is initially most of the fun. Of course, making a positive ID is icing on the cake.

@MATU ... I hope you'll share the info from your article, your findings, when done. Best wishes ...

@ExoGuy Thank you so much for the information! Do you happen to know of any other private merchant countermarks on Chilean coins? That would be very helpful for the article.