During the 80's there were a few groups in Mexico that went to Europe to buy new genetics, just like many Americans did, and one of the strain types that they brought back, which thrived in Northern Mexico, was Ortega.
Based on the plant leaf structure and quick finishing time it's got to be an Indica that was selected and bred for commercial drug use. It could also be Guerrero green, which is actually Lebanese Upper Mountain (LUM) brought over from Lebanon during the 70s & 80s. Each strain on the list of possible strains is very unique in it's flavor and smoke profile making it possible to tease out an ID. https://www.cannabisculture.com/content/2005/06/28/4280
Now be warned, it's almost impossible to nail down a strain by photos of flowers alone, but maybe Hoodini can give us a full smoke report for his LAH strain. What does it smell like before smoking and during smoking? This information combined with knowledge of what was available in different regions during the appropriate span of years usually gives you a pretty solid lead on what it actually is. You said previously that the original genetics were from "bagseed", do you remember anything about the origins of the bagseed?
All of this is only possible, because there was a limited variety of different strains. If you were to try an do the same thing with a strain from today's market I wouldn't even be able to guess. We went from 1000 strains, with only 5-8 available in a region, to 10,000 strains with 200-500 available in a region.