four-in-hand

O.Henryの短編 'A Retrieved Reformation' からです。

The clerk was impressed by the clothes and manner of Jimmy. He, himself, was something of a pattern of fashion to the thinly gilded youth of Elmore, but he now perceived his shortcomings. While trying to figure out Jimmy's manner of tying his four-in-hand he cordially gave information.

"four-in-hand" はネクタイの結び方の一つに違いありませんが、どんな形の結び方でしょうか？
・Oxford English Dictionary: A necktie tied in a loose knot with two hanging ends, popular in the late 19th and early 20th centuries.: ‘The choice appears to be four-in-hand, Windsor, cross knot, half-Windsor, Prince Albert, Ascot, or small knot.’

・Collins Dictionary: a necktie tied in a slipknot with the ends left hanging: From somewhere, he had unearthed a black silk suit, black shirt and deep purple four-in-hand tie.

・Wiktionary: A slip knot with one end hanging in front of the other; a simple necktie.: He wore a black frock coat and light trousers, his cravat a gray four-in-hand.

最後に引用した辞書(Wiktionary)には "four-in-hand" の写真が載っていました。
辞書では結び方は分かりませんが、ネット上には色々な形のネクタイの結び方が載っています。私はネクタイの結び方は一つしか知りませんが、どうもそれが "four-in-hand" の様です。