Left, Right KO Combo

Time: 15/10 ECO code: ?? (see note below)

White concludes with a double piece sac.

PS: I can't find this variation of the Caro Kann anywhere ??  It's Blackmar Diemer applied to  the Caro. (1.e4 c6 2.d4 d5 3.c4 dxe4 4.f3).