I have once asked here about a postcard of Olga, Tatiana, Alexey and their Hessian cousins, from 1911 I think. I have been aware that this card is pretty rare, now I saw an offer of it for 500 USD. Has it been printed in those days so rarely? I do not collect those items, but found it a nice one like some others. Does anyone know how many of it were printed? I know this makes the most cards rare.
Has anyone a photo of this card in full and of its backside?