SI 135.5-4.125 [020] (embossed on the outer circle of thee dome) COLORADO SPRINGS, COLO. NAT'L MEET (embossed on the inner circle) JULY 10-11, 1971 / SECOND (embossed at the top of the pinhole) FM, "FM" stands for "Frank Miller" who produced these. Rare straw color. $500 postpaid. Valued at $500-600 in the latest price guide. 1971 Straw NIA commemorative, Colorado Springs, Colorado, $500 postpaid