To be literally correct no.. it wouldn't be 100 percent ..and I have no idea what plant or plants are 100 percent of anything I'm sure their are old school growers keeping legendary strains alive ...that's why i told the op that I think it's a hybrid. ..Their could have bin one true indica strain their could have bin thousands I don't know!! All I know is people breed the shit out of it and guessing 100 percent indica is a far reach ..which I get the feeling you are starting to understand by your last post...but I dont know to much about breeding hopefully someone weighs in on the subject! !