Zoppoter Provisional arrangement, Michel no. 151, 152, 154, 155 and no. 157 with overprint "T in the circle", on self-formed pages, no. 152 expertized Infla and Erdwien BPP, no. 154 and 155 expertized Infla and Oeschner BPP, no. 151 abridged certificate Soecknick BPP (for former block of four) "genuine, perfect", no. 157 abridged certificate Soecknick BPP (for former pair) "genuine, perfect"