Not sure start-to-finish time, on these...but I am sure they were out in the mid 1960's based on some old ads that I have seen form magazines of that day. They are somewhat collectible.. Most v9's willsell for 75 to 125 bucks pending condition, box, etc..
They are very rugged scopes, but lack some of the new coatings on the optics that are on today's scopes. I have many El Paso made weavers and like them all, and use many on my guns.
dave