"Linke Reihe, die dritte von unten, ist das eine IZH-79?"
Yes, that is a russian Makarov (100% steel) in 8 mm Knall.
Magazine according to factory specs is only 8 rds, but it functioned perfectly with 10 rounds of Wadie 8 mm K.
In about 50 rounds there was only 2 failure to eject, when my girlfriend used it with only one hand grip. When she gripped it correctly, the gun fired an entire mag without a hickup.