Accompanying address to registered parcel without price, sent from Stahmereene to Riga (The Soviet Latvia) on April 18, 1919. It was received on April 23, 1919, handed to receiver on April 24, 1919. Form is franked with five RSFSR stamps 70 k. "arm with a sword". Very rare sending in Soviet Latvia (December 4, 1918 - July 1, 1919).