[78-L] columbia double-face

[Francesco Martinelli]

I purchased an Operatic 78 with an interesting sleeve. It's by Catalan 
baritone Ramon Blanchard, with Verdian arias (Eri Tu/Pari Siamo. Matrixes 
30431 and 30450, rec. 1910 per the Columbia Matrix book, which does not 
mention this specific coupling,  catalogue n. D 16299, maybe it was European 
only? One side is on You Tube, loaded by an Italian, with reference to 
master and catalogue numbers. The label features a Columbia gramphone-shaped 
logo under the "Double-face". I cannot find an exact equivalent online. 
Label on request. On the sleeve there's a printed fram where a photoof the 
performer is pasted, and a line for the stamped catalogue number; it 
advertises La Cigale and Columbia together.
Any help to find a possible year of production?
thanks
fm