Would be helpful if you could take the bike frame out of the box, and just describe here:
- The color
- Whether there are any decals on the frame and what they say (including the tubing)
- The serial number if you can find it (probably on the bottom of bike).
Also, an important question was asked above. Is it "new" in the box, as in, never ever ridden, and still in the original box? Or "in a box" as in it's been in storage for many years but has been ridden. If it's been ridden, what's the overall condition?
Photos are even better if you can take some and post them.
Sounds like an interesting find; lots of folks here could be helpful.