BT-7 and T-26 with additional armor are moving to the frontline. 5th Tank Brigade/Western Front, Nov.'41 
T-26 tank (with additional armour plating) from the 5th Tank Brigade. Western Front, November 1941.
rem. AMVAS: Probably it's reconstruction of T-26 from the background of previous photo
Captured T-26 tank that had been screened in Sevastopol, Summer 1942. 
Sevastopol T-26 with additional armor 
T-26 tank with additional armor (with cylinder turret and straight
under turret box). 1940. The vehicle was screened by the scheme
of the plant No. 174 that had been developed for T-26-1 and KhT-133 tanks.
T-26 with additional armor. Variant of plant No. 174. Karelia, Jan. 1940 
T-26 tank with additional armor. Leningrad Front, Feb. 1944.
T-26 with additional armor. Leningrad Front, Feb. 1944 
Captured T-26 with additional armor. Leningrad vicinities, 1942 
T-26 with additional armor. Leningrad Front, Spring 1942 
M. Kolomiets, M.
Svirin, "T-26 Legkiy Tank" Frontovaya Illystratsiya, No 1, 2003
"Tankovye Vojska RKKA vo Vtoroy Mirovoy Vojne. Serijnye Mashiny 1930-45 gg. Chast I. Lyogkiye tanki", Tankomaster, special issue 3-4/2006, Moscow