general postal service ( 3. planned trip), inner envelope of the 1. weight rate franked with 20 pfennigs, submersible stamp from 16.1.17, censorship stamp" double beam", large" return" cancel, on the back reimbursement memo, letter with horizontal central fold and vertical edge fold, visually barely objectionable and despite the small restrictions a attractive cover, extremely rare destination Mexico, Michel / Geissler 625.- plus plus