original multi page fold open sales brochure & poster advertising 4 trencher models made by Davis Mfg. Co. in Wichita Kansas. Models shown include T-78, D-100, T-66 and T-36. Not dated, appears to be c. 1965. Brochure/poster is in good condition, discoloration to the original mailing sides as shown in pic 4. It measures 11″ x 14&1/2″ as shown as pic 1. The poster itself is 22″ X 29″ as shown in pic 2. Will ship folded due to the size, well protected in large envelope via USPS.