Blueprint Evolution of the Starship Enterprise

The iconic "Star Trek" vessel is one of the most beautifully-designed and easily-recognizable spaceships in science fiction I have had this in my possession for over 30 Years. Who had it before me was an old couple I met through friends who saw that I was into star trek. The gentleman worked for a Printing company and told Me he had this Blueprint. I tried to get more info Out of him but he could not tell me more. I called the company who’s name is on the blueprint and they told me they purchased the company recently and could not tell more. This blueprint is gorgeous. You can see that it was professionally done. I put it on the frame and tacked the sides. The side will have small tack holes and small tears. This is why I put it on a frame. If it sells I will roll it up neatly and send it in a solid round tube. It is 20 inches wide and 16 inches long. There is a strip of tape on the side of this blueprint. I do not want to take it off in case it rips.