Johnny, it appears that the bumper currently on the cue is not original, it doesn't match the cues pin for age, the reason I asked for a picture of the bumper is because the earliest ones had a small push in bumper. The reason I said the bumper is not original, is because the next style bumper Adam used was a large round push in bumper. The style of bumper used was not used until the 1980's, however, they also switched to a rounded pin and this cue has the older pointed pin. You can also look at the butt cap and see that the indented area was for a larger diameter bump, so I would have to say that the cue pictured is from the late 1970's.
Unfortunately these cue are not worth a great deal money and they are not really collectible since they were made in Japan. If the cue is straight it is worth between $100 and $150 and these numbers are approximate not set in stone.
Johnny, if the cue is straight they certainly make nice players, and that is what I would do with it.
Hope this helps