"Sansur Aida Shod", blue negative censor mark with adjacent blue negative "Hamadan Markaz Komandarli 1333" and violet "Sansur Aida Shod 133" on fron and reverse of small cover from "HAMADAN (BAZAR) 31.VIII 16" to Senneh with arrival mark; very rare, only few covers known with all 3 strikes