These covers by Joshua McGee of @McGeekiest Cachets feature a digital sketch of a rural road stretching between hills and a fence. In the lower-left, in script, is the inscription "Rural Free Delivery". Postage is paid with one First Class "Tan Flag" stamp (Scott #4129) and one 9.3¢ "Mail Wagon" transportation coil single (Scott #1903).
The stamps are cancelled with a "Gaylord Opryland Convention Station" pictorial postmark — reading "112th NRLCA National Convention" and picturing the state outline of Tennessee, a guitar, and musical notes — dated August 16, 2016 in Nashville, TN, 37214.