  A new resonance structure at M = 355 \pm 6 \pm 9 MeV is observed in the
invariant mass spectrum of two gamma-quanta produced in the reaction d + C =>
gamma + gamma + x at momentum 2.75 GeV/c per nucleon. Preliminary estimates of
its width and cross section are Gamma = 41 \pm 12 MeV and sigma_{gamma-gamma} =
0.6 mkb. The collected statistics is 2680 \pm 310 events of 1.5 10^6 triggered
interactions of a total number 3 10^{12} dC-interactions.
