5-7 May 1937
7-10 May 1937
Well ... Φ-5 943, 944 Lot Φ 106 Lot Φ 107 Lot Φ 108 Lot Φ 109 Lot Φ 110 Lot Φ 111 Lot Φ 112 Lot Φ 113 Lot Φ 114 Lot Φ 115 M 18:4 ... 22 Apr 1937
Well ... Φ-4 605, 606 P 10266 P 243 M 18:4 E 15:1 ... 26 May 1937