1923CPV5b/I, I. part from order card issue Chainbreaker 30h violet, returned back, delivering fee are paid on face-side mixed franking postage-due stamp. Pof.DL2, DL16 2x, CDS ČESKÉ BUDĚJOVICE/ 11.VI.23; folded, in upper part hints after sticking, very small/rare and rare occurrence Us big p.stat!