This is pretty cool. Someone on Ebay is selling a general admission ticket for 1970 Dallas Trans Am event that was cancelled due to excessive rain. It was supposed to have taken place on April 26, 1970 at the Dallas International Motor Speedway. I have never seen one of these before.
https://www.ebay.com/itm/135305667711?_skw=scca+trans+am+press+kit&itmmeta=01JV7CQHWP21Y8HARYFGW43T54&hash=item1f80d8a47f:g:GbwAAOSwUJxnECfg&itmprp=enc%3AAQAKAAAA0FkggFvd1GGDu0w3yXCmi1clmoBDVabq2c4gWClOFB9pEff3hvrXJ0a3G7HnzeC1qFRUeHwPyryaIDMw2zdaYoy93wy3iu6xDgvCg%2BdrkvqMxTjXjF6RO%2BSgLvMd8l7OM6FBvA5dgLH3Oq0uYrIhiL6A0tJCJmFQ322mWcXPkQHfh%2Fm4NR9K6B5k506t87VZ8dqbdHUm%2BF1Mixhj0LVJJSDNXhsdyLcM0z0GlBW8Kqf2WsRTdzNc6wV492DKCVrFPuuAkv16jvx7ay%2FP9mYFjck%3D%7Ctkp%3ABk9SR8Se3uzZZQ
Sorry for this off-topic reply, but the Dallas International Motor Speedway was also the site on the Labor Day 1969 Texas International Pop Festival in Lewisville. Here's the poster of that event.
Both, very cool pieces!