Donetsk, Oct 25 - DAN. DPR State Post has issued a metal stamp for the first time ever, featuring samples of coal, to commemorate the 300th anniversary of the discovery o coal deposits in Donbass.

"We are extremely proud to present our new "stamp in metal" - an installation combining the real rock and metal," the press statement issued by the Post says.

The stamp is made of brass, it is 30 mm in diameter, it's weight is 17 g.

The installation is decorated with a guiding star and mining tools.

The first-day-envelope with a black-and-gold lining is also available for purchase.

The price of the commemorative sign is 900 rubles, the envelope in a frame costs 1000 rubles at the store at Artyoma street 72. *o