group on album pages or lot cards, includes (mint unless otherwise noted) PS2 (3), PS7-15, PS11-14 plate blocks, PS11b-12b, PS15 bottom margin block of four with plate number, S1-5, S1a, S2a (EE), S3-4 plate blocks, S7a (no tab), WS2 on document, WS4 on piece, WS5 (no gum), and WS7b-8b, generally very fine, a useful and attractive group for continuation or resale