That article suggests WWI timeframe, but the dolls in those pics don't look like they have 100 years of deterioration to me. One of the dolls looks like a Barbie - which was introduced in 1959.
I have a doll collection! I prefer to call them 'action figures'. And I just so happen to be Vice Admiral He-Hag of NAFTA!
AKA, National Action Figure Trade Association.