1983 Embroidered TH patch commemorating the L.A.W. Metric Century Bicycle event in 1983. 3" square. $7.51 from John and Deb Brodahl, Greensburg, PA, through Ebay, Jan., '02.
Here is another first for this collection. I do not know what the "L.A.W." stands for, and I did not know that they had a bicycle race to promote the metrical system, but symbols like TH get around!