Expo Memorabilia

We are in search of (ISO)
Weak Signals RC Expo Patches, Pins and Stickers

We don't know exactly when patches, stickers, and pins were offered at the expo. We believe we have a full set of pins between 1989 and 2011.

Please let me know if you find one I don't have listed or would like to contribute to our collection of RC Expo memorabilia.