Historians have long wondered whether Central Park was originally conceived the way it looks today. Were the ornate colorful tiles underneath the Bethesda Terrace a vision of the original designers? What about the elegant black lamps that dot the park?

Now historians might finally have some clues about the park’s design.

Illustrations for features of Central Park and other public places in New York have resurfaced, and the city has gone to court to get them back. Real estate broker Sam Buckley said his father found the drawings, by Jacob Wrey Mould, in a Manhattan trash bin sometime before 1960, according to court documents.

Though Calvert Vaux and Frederick Law Olmsted designed Central Park, Mould assisted with several noteworthy landmarks of the public space, such as Bethesda Terrace and Belvedere Castle.

The 127 drawings, which date from 1860 to 1885, are stamped “Department of Public Parks.” The city claims it never authorized the destruction or abandonment of the drawings and believes they were “lost or erroneously discarded.”

The city learned about the drawings after Buckley placed 86 of them for sale with Christie’s auction house. He kept the remaining 41. The city asked the court to award $1 million in damages or compel Buckley to hand over the illustrations.

Christie’s and Buckley have agreed not to sell the works while the settlement talks play out. The auction house declined to comment, and Buckley could not be reached.

The 86 drawings being held at Christie’s include illustrations for a wide variety of items and venues — a drinking fountain for horses, lamps, clocks, approaches to the American Museum of Natural History and music pavilions for various city parks, including Washington Square and Tompkins Square. All were prepared by Mould, or under his direction, the city says.

Mould, born in Britain, was known for importing the flair of British Victorian architecture to his U.S. work. He moved to New York in 1853, and also designed several churches in the area. He was the park department’s chief architect for three years.