It was 10 a.m. on Friday, an hour after the gates had opened for a two-day sale.
The items not retained for the museum's collection were sold at a two-day sale held by Christie's.
A total of 295 yearlings sold for $109,454,000, an average of $371,030, at the two-day sale.
As the two-day sale opened, about 1,000 people gathered under a tent used as the auction site.
The two-day sale totaled $2.9 million, above its high estimate of $2.1 million.
It was the first part of a two-day sale in which all the lots found buyers.
The two-day sale of 630 items is expected to bring up to $12 million, with as much as $9 million from the American decorative arts.
Sotheby's expects the two-day sale to total about $200 million.
Sotheby's estimates the two-day sale in London will bring $3.5 million to $5 million.
Her remaining possessions were disposed of in a two-day sale in October 1886.