This photo is taken outside the entrance of Ysaÿe's home. Gingold and Solway are arm in arm and posturing jovially. The word written across the gate is "la chanterelle", which is the colloquial name for the highest string on the violin (the E string).
The photo is taped with transparent tape at the top and has been written upon the back in pencil. An earlier message appears to have been erased from under the newer identifying inscription.