52:11 w85 5/15 15; w84 7/1 29; w83 11/1 24-8; w82 7/1 18; w79 5/1 20; w76 9/15 572; w76 11/1 669, 672; w73 12/1 720; kj 160, 175; w69 11/1 656; w67 11/1 652; w66 3/1 151; w66 3/15 182; g65 4/8 28-9; w64 8/1 467; w63 8/15 494; w63 11/15 694; w63 12/1 715; w60 9/1 266