6c Ultramarine (115), used very likely reconstructed 'block' of four, heavy cork cancels, there is at least partial (if not complete) perf. strengthening between T. and B. pairs, B.L. stamp has a small unobtrusive repair at B., otherwise fine, still an impressive appearing multiple (Rose notes only three used blocks), offered solely as two used pairs, Scott retail of two pairs $800.00+ (retail of a used block is $5,750.00) photo