Oh, nuts. I know I've read about this dress here somewhere, but I can't begin to remember where.
If I recall correctly, this actually may not be one of the GDss dresses. Judging by the skirt length and neckline this is a design for a grown woman, and if indeed it was made in 1910 it can't have been for one of OTMA -- Olga was only 15 that year.
I'll try to search around and see if I can find the post I'm thinking of.