When the refurbished rooms of the Morgan Library & Museum opened last week, the article in The New York Times featured a photo of Mr. Morgan’s library in the original house, where books were held behind glass doors in mahogany shelves and a colossal tapestry covered the only open wall. All of it was anchored by an Oriental rug with a red border and dark blue ground strewn with light-colored flowers and abstract shapes, like stars in a midnight sky.

That rug, an antique Sarouk, is about 18 by 30 feet. Today’s J. P. Morgans can choose from a variety of sizes and regions. For example,

Here is an Agra, 9.1 by 13.6, made in a classical room size, and not on a movable loom. Pale tones in the border and throughout the field give an impression of lightness, which is true of many Indian rugs. It was made at the end of the Victorian era.

This this antique Karabagh from the Caucasus is a 6.2 by 20.4 runner Mr. Morgan would have loved, unbelievably decorative, knotted at the end of the 1800’s. Although Caucasian rugs are almost always written as small, there are some Karabaghs, like this one, that are good-sized.

Bibikibad may not be a familiar name, but it is a village in the Hamadan region in Central Persia. Woven in the late 19th century, it has characteristic pale blues and abrash in the densely patterned field and wonderful intricate borders. It is 11.6 by 16.2.

The antique Sultanabad has one of the great traditional wide red borders with a large flower design. The field is a tighter design of interlocking flowers. It is 8.9 by 10.

Mr. Morgan would love the classic Tabriz - my sense of him is that he always went for the best. It is tightly knotted and detailed and the field is the Herat pattern, which is that design that looks like a fish scale. It is 8.9 by 12.3.

And by the way, did you see how much the Modigliani went for at Christie’s yesterday? Yes, $68.9 million. Truly a bellwether day for the art markets.