Ooo, nice find and bargain. I don't know what Matt is on about, it looks timeless and is a center shaft. I could see this sell easily by putting in a new shaft, new grip and headcover at $110 from Kevin (he might even sell you a shaft band too), then I could see this go for a few hundred dollars and that is not considering if there is value in Bob Estes.
Do you have a photo from the top?