Help with a more distinctive Mexican Hallmark

[mtraner]

Hello again! I have these pair of earrings that have a more distinctive hallmark than the usual Mexico makers marks. It appears to be either CCB (or maybe GCB), and it's very hard to tell but it appears to start to say "La Ranch"-something around the outside, and what almost appears to be "hecho en taxəɯ", cleaver way of taxco mexico possibly? Not really sure, haven't seen anything like it, plus the hallmarks are difficult to read. I tried to adjust the pictures as best as possible! Any help would be amazing, as always! Thanks again :)