Unique document of the general postal service service ( 3. Planned trip), the official gazette no. 94 from 25.12.1916, widersprechender stampless letter the 1. Weight step as inner envelope to the USA. The submarine cover durchlief the normal tooling, was with a rate marking" T 20 ", submersible stamp from 18.1.17, censorship stamp Q and large" return" stamp provided. A reimbursement memo is missing. Excellent condition, Michel / Geisler unknown, LP