One of the features of the Communist (and post-Communist) rule in Russia is its love of renaming streets, cities and even states.
This plate depicts the Palace Square, the most famous square in St.Petersburg, that is located right between the Winter Palace and the Headquarters of the General Staff with the Alexander Column in the middle.
However, on the rim of the plate it says "Petrograd. Uritsky Square".
Let's start with the name "Petrograd". In Russian the word "grad" (gorod) means "city", which is exactly what the word "Burg" means in German. Soon after the start of th World War I (where Russia was fighting aginst Germany), the city was renamed simply to sound "Russian". that was done under the Tsar, which confrms the point that toponimics is always political in Russia.
Moisey Solomonovich Uritsky was the head of the Petrograd Secret Police and he was assassinated on August 30, 1918. His assassination prompted the start of "red terror". Ironically, Uritsky himself was against death penalty.