The Communist salute that you made is actually a resemblance of the Anarchists clenched fist.
"Those few times I was in Barcelona there were a lot of young people there, just like in Aragon, in the district of Murcia as well as in other places. When we were traveling to the Cordoba-front I saw young boys out in the fields. They clasped their hands over their heads - the beautiful Anarchist greeting. We thought it was fancy - their way of greeting us, until one started reflecting upon it: There they stand, clasping their hands, and here I am, on my way to the front. But maybe they had to stay on the farms for the sake of the food supply in the country. And even if all able bodies had reported to the front, there weren't enough weapons to go around anyway. As an interbrigadier I only once felt unwelcome. It was in a village named Jacila, nearby Alcoy. There were a bunch of guys at the bar, guys my own age, and they… they seemed to view me with distrust. Now, this district had a strong Anarco-Syndicalism influence. No, I didn't see much of the socializing on the government-side. But one couldn't help noticing the Women's Liberation. They joined up in all sorts of situations, in the hospitals and in the industries. This was a sort of revolution in itself."
