Big-Assed Map of cheapest Texas

Big old classroom map cheapest printed on vinyl, with working roller. Shows all of the counties, topography, major cities and towns and major highways. Couldn't find a date, but looks to be 70's or early 80s. Some wrinkling at the bottom but pretty sure it can be flattened out.

Can be mailed book rate for $8.00 plus a $10 handling fee for the weird box I had to buy.