50 Kop. \"Perekop\" with overprint \"Eesti post\", unused with original gum, these stamp is one of the issues, which the overprint first at the submission through post customer at the counter received, small edition, so far only 6 examples near the BPP expert Thomas Loebbering registered, expertized Nemvalz, Puloaas and photo expertize Loebbering BPP: \"genuine and immaculate. \"