Very nice. At the Anarcho-Syndicalist May Day in Stockholm today, which often is drastically larger than that of the mainstream "Left Party" and/or the (formerly leftish) "Social Democrat" party's, there was another flag this year, that of the Combat Organization of Anarcho-Communists ("BO AK", http://boakor7dmr63zguccltp6nki56ou4oppirhyllfck7yd3sifywinhkyd.onion/index.php/en/) in Russia, resisting Putin's imperialist war in Ukraine through for example derailing trains, destroying conscription centers and other marvelously excellent actions.
The building it's hanging from would seem to be the old Stockholm stock market building, in front of which the anarchists, syndicalists, antifascists, etc hold their speeches and sing revolutionary hymns every May Day.
"We are all antifascist!", in Paris for May Day about 7 hours ago today, featuring the "Strasbourg – Montpellier – Paris – Lyon – Lille Antifascist Youth Guard"
Capitalism-extremist Macron's bike-gangs of cops now terrorize the productive classes on the streets of Paris to prevent further May Day manifestations, after starting similar repression of expression of dissent using vans about 3 hours ago.
Hmm. The Prime Minister of France is reportedly very outraged that cops have been injured with explosives while the people were protesting capitalism-extremist Macron's dicatorialism today, May Day.
Turns out... at least in the case I've seen, it seems it was a cop that exploded the cops phalanx.