I don't know if i've seen any clear 7 up bottles before or any 7 up bottles from mexico . so not really familiar with what they used there but haven't seen this one
I've seen spin off drinks bottled at 7up bottlers that were clear but never an actual 7up.
I've seen some of the shield style 50-60s bottles from Mexico that were green.
This appears to be from the 30s or 40s with the Embossed neck.
I do not have it in my possession yet. It popped up today and I bought it.