Coca-Cola Company is searching for three missing one-of-a-kind oil paintings that it commissioned from the Americana master more than 74 years ago

1.    ‘‘The Old Oaken Bucket’’, 1932, which depicts a boy sitting on a well with a small wooden barrel of Coke bottles in his lap.

2.    “Wholesome Refreshment”, 1928, a sepia tone magazine ad made for The Sat-urday Evening Post that depicts a smiling young man lounging with a Coke while well-dressed adults, circa 1920, are playing with children. At the bottom is a legend that says ‘‘8 million a day.’’

3.    “Office Boy — 4 p.m. — The Pause That Refreshes”, 1930, depicting a smiling boy in a suit and tie carrying a tray of two bottles of Coke and two glasses and opening a door marked ‘‘Vice President.’’

“A study for Willie Gillis” by Norman Rockwell has been missing since it was stolen from an Atherton home in 2003.

DALLAS, Texas (Oct. 13, 2017) – Recently returned to a family after it was stolen more than 40 years ago, Norman Rockwell's endearing Lazybones (Boy Asleep With Hoe), also known as Taking a Break.

A previously unknown Norman Rockwell baseball painting, having been ‘lost’ for almost 70 years.

When experts from the Dallas auction house were called to value a signed Norman Rockwell print, they were amazed to discover it was actually an original painting by the renowned artist.

The oil-on-paper work is a study for one of Rockwell’s most famous baseball paintings, “Tough Call”, otherwise known as “Bottom of the Sixth” or “The Three Umpires”.

The 1948 work depicts three baseball umpires preparing to cancel a game due to rain, during a doubleheader game at Ebbits Field between the Brooklyn Dodgers and the Pittsburgh Pirates.

The finished work appeared on the cover of the Saturday Evening Post on April 23, 1949, and is regarded as perhaps his most famous baseball painting.

The original now resides in the Baseball Hall of Fame at Cooperstown, but Rockwell gifted his initial study to John ‘Beans’ Reardon, one of the umpires featured in the painting, along with the inscription:

"My best wishes to ‘Beans’ Reardon, the greatest umpire ever lived, Sincerely, Nor-man Rockwell."

Reardon was a renowned baseball umpire who worked in the National League for more than 20 years.

He officiated five World Series and three All-Star Games before retiring in 1949, and was known as "the last of the cussin’ umpires", due to his fondness of trading on-field insults with the players.

For years the artwork had passed down through Reardon’s family, with the umpire’s descendants believing it to be a signed print, rather than an original painting.

Police are still searching for a Norman Rockwell painting that disappeared from a Queens storage warehouse in September.

The oil on canvas painting, “Sport,” shows a man in a rowboat wearing a yellow raincoat, holding a fishing pole.

The image was published on the cover of The Saturday Evening Post in 1939.

The painting disappeared from a WelPak Art Moving and Storage unit at 58-60 Grand Avenue in Maspeth.

Police said the painting was being stored awaiting shipment to its owner. Neither NYPD nor Sotheby’s would identify the owner of the painting.

Breaking Home Ties, which hangs at the Norman Rockwell Museum in Stockbridge, Massachusetts, is one of the American artist's best-known and most popular works, worth an estimated $5m on the art market. Or it would be, if Rockwell had actually painted it.

In fact, the museum's prized exhibit has been exposed as a fake, almost certainly created by the cartoonist Don Trachte, who bought the original painting from Rockwell in 1960 for a mere $900. Trachte died in 2005, but his deception was only revealed last month when his sons, Dave and Don Jr, discovered the original painting hidden in a secret compartment behind the walls of their father's house. It had lain there undisturbed, along with seven other valuable works by contemporary artists, for the best part of 35 years - the exact date is uncertain, since even now no-body knows when Trachte made the switch. "Right now, I believe he could have painted the Mona Lisa and fooled the world," says Don Jr.

Norman Rockwell painted Breaking Home Ties in 1954 for the cover of the Saturday Evening Post. The copy that hangs at the Rockwell Museum has long puzzled art experts, since it differs visibly from the printed Evening Post tear sheet. However, it was always assumed that the painting had been tarnished by restoration.

"We had lived with the tragedy of believing that this piece had been damaged all these years," says the Rockwell Museum's director, Laurie Norton Moffatt. "It's a thrill to know that the original exists. It was like having a child come home. The instant you look at it, you know."

Both paintings, the original and the copy, are now on display together. However, the greatest mystery remains: why did Trachte, a respected cartoonist and a close friend of Rockwell, forge a set of paintings that he already owned?

It is most likely that he painted the fakes in the 1970s, before or during his divorce from his wife Elizabeth. "He was worried that they could be taken away from the family," Don Jr suggests. "I don't think he knew what the heck was going to happen. Maybe the lawyers would have said the best thing was to sell the paintings."

Whatever the reason for Trachte's ruse, it appears that he left the world a clue: a self-portrait parody of Breaking Home Ties, with himself as the morose father and his famous cartoon character Henry as the boy. It now hangs with the original, and the fake, as part of a special exhibition at the Rockwell Museum.