|Unit: Sukhoi OKB
S-1 fighter prototype (Su-7). Note the pre-1955 markings style with insignia on the rear fuselage.
Artist: © Sergey Anatol'evich Ershov
Source: "Sukhoi Su-7/-17/-20/-22 - Soviet Fighter and Fighter-Bomber Family" by Yefim Gordon. (c) 2004. Aerofax. Published by Midland Publishing 4 Waitling Drive, Hinkley, LE10 3EY, England. ISBN 1-85780-125-3