FDEYES Sukhoi Su-47 Gold Eagle Fighter Jet Building Block Set, Air Force Military Toy Plane Building Kit, 707 Pieces Model Plane Gifts for Kid & Adult, Aircraft - Amazon Canada
Su-47 'Berkut' didn't fly, but became an experimental demonstrator
Suhoi Su-47 - Wikipedia
The Strange but Impressive Soviet SU-47 Berkut - Owlcation
Su-47: Russia Only Built One of These 'Forward-Swept' Wing Fighters - 19FortyFive
Sukhoi Su-47 - Wikipedia
Sukhoi Su-47 Berkut experimental fighter – Russian Air Force, Zhukovsky airbase 1/100 – Plane Store