Russia Painter FDC

Russia FDC
Name: The 175th Anniversary of birth of V.G. Perov
Date of Issue: 28 January 2009

Denominations:
9.00 (right): Self-portrait, 1851 (Kiev Museum of Russian Art)
9.00 (left): Tea Drinking in Mytishchi, near Moscow, 1862 (The State Tretyakov Gallery)

Vasily Grigorevich Perov (Russian: Василий Григорьевич Перов) (real name Vasily Grigorevich Kridener) (January 2, 1834 (December 21 1833 Old Style) - June 10 (May 29 Old Style) 1882) was a Russian painter and one of the founding members of Peredvizhniki, a group of Russian realist painters. More...

Comment: I don't know Russian, whether "Перова" means "Перов"? The stamps use "Перов", but the special cancellation uses "Перова". Why?