GENEVA, SWITZERLAND - MARCH 07: Ford Mustang is displayed at the 88th Geneva International Motor Show on March 7, 2018 in Geneva, Switzerland. Global automakers are converging on the show as many seek to roll out viable, mass-production alternatives to the traditional combustion engine, especially in the form of electric cars. The Geneva auto show is also the premiere venue for luxury sports cars and imaginative prototypes. (Photo by Robert Hradil/Getty Images)
Robert Hradil/Getty Images Europe/Getty Images
GENEVA, SWITZERLAND - MARCH 07: Ford Mustang is displayed at the 88th Geneva International Motor Show on March 7, 2018 in Geneva, Switzerland. Global automakers are converging on the show as many seek to roll out viable, mass-production alternatives to the traditional combustion engine, especially in the form of electric cars. The Geneva auto show is also the premiere venue for luxury sports cars and imaginative prototypes. (Photo by Robert Hradil/Getty Images)
Now playing
02:09
Here's why Ford isn't phasing out the Mustang
The new all-electric Mercedes-EQS
Mercedes-Benz AG
The new all-electric Mercedes-EQS
Now playing
01:05
See the new all-electric EQS luxury sedan from Mercedes
The all wheel-drive, electric Nobe GT100
Nobe Cars
The all wheel-drive, electric Nobe GT100
Now playing
01:27
These tiny cars are cute and easy to park. Will anyone want them?
GM unveils new electric Hummer SUV
GM
GM unveils new electric Hummer SUV
Now playing
00:55
The Hummer electric SUV is coming
Canoo
Now playing
00:59
See this Tesla competitor's new electric pickup
McLaren
Now playing
01:23
The McLaren Artura is an electric hybrid with the speed of a supercar
Now playing
01:01
See Porsche's 911 GT3 on the racetrack
Now playing
01:24
See Ford's new Raptor F-150 in action
Natalia V. Osipova
Now playing
02:28
Review: The Ghost is more modest and simple, but it's still a Rolls-Royce
BMW
Now playing
03:04
This Mini Cooper is built to race. No, really
The 2021 Jeep® Wrangler Rubicon 392
FCA US LLC
The 2021 Jeep® Wrangler Rubicon 392
Now playing
01:11
See Jeep's most powerful Wrangler ever
Volkswagen
Now playing
00:50
See the Golf R, VW's most powerful Golf ever
JAMES LIPMAN/ SSC North America
Now playing
01:32
Watch this production car break world speed record
Peter Valdes-Dapena/CNN
Now playing
01:01
This is Volkswagen's first electric SUV
Ferrari
Now playing
01:39
Ride along in the latest Ferrari convertible
Nissan Z concept car.
Nissan
Nissan Z concept car.
Now playing
00:54
Nissan gives a glimpse of its first Z car in more than a decade
(CNN) —  

A retired salesman in Canada is heading to the Henry Ford Museum in Dearborn, Michigan, to be reunited with a Ford Mustang he accidentally sold 55 years ago.

Ahead of the launch of the Ford Mustang in 1964, car dealerships were sent a preproduction vehicle to display. They weren’t intended to be sold to customers, but one – with the very first Mustang serial number – was purchased by a pilot in Newfoundland.

Harry Phillips, a salesman at George G.R. Parsons Ford in St. Johns, Newfoundland, told CNN it was the “easiest” sale he ever made.

The brand-new Mustang had just been shipped to the dealership from the factory, and it sat on display near the road. It was a “revolutionary car” of the times, Phillips said.

Tucker stands next to the car in 1966.
From the Collections of The Henry Ford
Tucker stands next to the car in 1966.

It was a convertible that donned the color Wimbledon white with black interior and quickly caught the attention of an airline pilot, Capt. Stanley Tucker.

“He saw it on the road and I was the lucky one that was closest to him at the time,” Phillips said. “He looked at it and said, ‘It’s mine.’”

The car sold for 4,300 Canadian dollars, according to Phillips.

The official launch date for the Mustang was April 17, 1964, but Tucker bought it on the 14th, according to Matt Anderson, curator of transportation at the museum.

With that in mind, Tucker made a deal with the dealership that he’d buy it but let it stay on the lot for display for a couple of weeks.

“We moved the car into the showroom that day,” Phillips said. “He came in every day to check it out and make sure no one did anything to it.”

Phillips still didn’t know the importance of the model until a few months later, when there was a scramble to find out where the Mustang with serial number 5F08F100001 had gone.

“That vehicle was a preproduction and meant to be sent back to Ford,” said Anderson.

Preproduction vehicles are essentially practice cars for workers assembling them, according to Anderson. They don’t have the quality of cars intended for sale, and on this Mustang it’s evident in the crooked panels and missing details such as rings around the door lock, according to Anderson.

It took Ford two years of negotiating with Tucker to get the vehicle back. In exchange for the first Mustang built, Ford gave him the one-millionth – a 1966 model with all the bells and whistles.

“He had put about 10,000 miles on it those two years,” said Anderson. “But it was in good condition.”

The car was put in storage and in 1984 made its debut at the museum.

Phillips made a career of selling cars and retired in 1995, having never again seen the Mustang he mistakenly sold in 1964.

But this week he’ll finally get the opportunity to see it, thanks to a social media campaign, “Send Harry to Henry,” started by his granddaughter, Stephanie Mealey.

Harry Phillips sits with his granddaughter, Stephanie.
Courtesy Stephanie Mealey
Harry Phillips sits with his granddaughter, Stephanie.

Phillips, his daughter and granddaughter are heading to Michigan on Friday for a VIP tour.

“It’s not too often we get to meet someone that was involved with our cars, especially like a notable one like this,” said Anderson.

The museum has a whole day of activities in store for Phillips that even includes a tour of the Rouge plant where that historic Mustang was built. This will be Phillips’ first time at the museum.

“It’s just fantastic, I just can’t believe it, ” Phillips said about going on the trip. “Everyone tells me to take a bunch of pictures.”

Besides the Mustang, Phillips said he is looking forward to seeing all the older style Fords, especially the ones from the mid-1950s.

CNN’s Justin Lear contributed to this story.