Animated pictures and postcards with congratulations on the International May Day holiday of spring and labor. In Russia, May Day is celebrated as a holiday of Spring and Labor. We invite you to congratulate your friends, relatives, work colleagues with interesting greeting cards from May 1. Download for free beautiful pictures and postcards with the inscriptions "Peace! Labor! May!" to the spring May holiday Day of International Solidarity of Workers. Happy Spring Day and Labor Day, dear comrades!