I've had a 3" long under-the-bed storage bin with miscellaneous
rpg stuff in it for a few years. My mom found it at a garage sale for probably $5 or $10, so she gave it to me the next time we visited. I previously sold the Traveller modules out of it, because they were in the best condition of the stuff it contained, and also because - at that point - I had very little experience with understanding the value & collectibility of older D&D stuff. At the time, web & ebay searches didn't give me much idea of the value of the rest of the stuff. So I stashed it away at home.
I recently moved it to my office at work, and I just had a chance to dig through it at lunch. I found some neat surprises:
- Nanorien Stones w/blue cover. The cover is damaged, but serviceable. The module itself is a bit worn, but likely still in collectable condition.
- The Black Tower by Midkemia Press, including the map. As usual, the map and module are worn around the edges, but also still in collectable condition.
- Tegel Manor. 4th print, quite worn, with detaching cover.
- City State of the Invincible Overlord. Not sure if this is complete. Maps appear to be present.
- Binder of Harn stuff, with Harndex and various other bits. This is going to take some research to figure out what's what.
- D&D Portfolio - Ambush Bend. Somewhat worn, somebody might like it for their collection.
http://tomeoftreasures.com/forum/viewtopic.php?t=4044
- City State of the World Emperor, including maps. Not sure if everything is present, and it's somewhat worn.
- Some Judge's Guild Traveller stuff that I haven't had time to research.
- Starfleet Battles stuff.
...and a few other bits & pieces. Neat!