EESTI 1921. Registered Cover  bearing multi franking of the 1920 35penni. Imperforate Definitive Issue - Tallinn Skyline (x3) Mi:EE 16, Sn:EE 41, Yt:EE 18, Sg:EE 18,  and the 2M. Mi:EE 17a, Sn:EE 45, Yt:EE 20, Sg:EE 21,  all tied with 'TALLINN EESTI 14 2 21'  Estonian double circle postmarks  (Type 15) to Gaissau, Germany.