As promised, a series of examples of anti-aircraft protection on Soviet armored trains.
Russian anti-aircraft positions on a fully armored self-propelled rail car, and on the tender located behind an engine
Vulnerable to air strike, eyes to the skies was the order of the day for AA crews on armored trains
Russian AA was eclectic, as shown here in a quad arrangement of Maxims...
...to a triple configuration of American lend lease 30 cal machine guns...

...to an assortment of larger caliber guns.
Regardless of the guns, with the Luftwaffe always a threat, the watch word for Soviet armor train AA crews was vigilance