The blade tags are from a repair station and 20 plus years old no other information on the blades only TTIS in the tags. Not sure how you would tell if their ex-military blades. Seems like a lot of the older 269 have real poor tracking other than a yellow tag stuck in the logs. I have no idea what happened to the original blades as the logs do not show they were ever removed.
Just to verify we're talking 269A1145 blades? The big issue before blade TT is AD history. There were several ADs if I recall and a number of blades were changed but never properly dealt with. But with no history records (component cards, etc) the blades and any other component listed in the Airworthiness Limitations section are not usable.
Does the aircraft have an AWC/registration? If it is an original A model, before you spend more time on the blades check the aircraft numbers against the TCDS numbers. Some 269As can be a cluster and depending on certain serial numbers it may not be eligible to operate.
FYI: normally a helicopter will have conventional logbooks for the airframe/engine like an airplane but there will be a separate binder with individual record cards for each life tracked part, i.e., all the parts listed in Note 3 of the TCDS linked above. There should also be some sort of status sheet that shows the current status of those tracked parts and O/Hs to meet the requirements of 91.417. I've seen the records done several different ways but it sounds like you're missing some records outside the logbooks/yellow tags.