Charlieman brings up the "history" as sometimes used up by auction houses.
Case in point: RM Sotheby's, London, September 2013
Lot 249: 1957 Maserati 250S by Fantuzzi, chassis 2432, engine 2432-1
1. One of four built
2. Believed to be the only example originally equipped with a 2.5-liter engine
3. retailed through Jim Hall's and Carroll Shelby's distributorship
4. raced in period by Hall, Shelby and Alan Connell
5. highly original and well documented
In the text that followed "2432 passed briefly to Gary Laughlin, and was next sold to Alan Connell."
1. Only three were ever built, one of which [chassis 2430] was a 200SI converted upon arrival in the Hall/Shelby distributorship in Dallas
2. Two cars were originally built with 2.5-liter engines: 2431 and 2432
3. The distributorship was never Jim Hall's, but was owned and financed by his older brother Richard Hall
4. Chassis 2432 was never raced by Hall, Shelby or Connell. Hall and Shelby took it out for some demonstration runs, but never used it in competition. Connell only owned chassis 2430.
5. if it was so highly original and well documented, why did the name of its first owner, Hap Sharp, not come up in the entire description? In fact, the car never raced with its 2.5-liter Maserati engine. After five laps of practice at Sebring in 1959, it burned a piston and Sharp's 200SI was used instead in the 12 hours. During the summer a 3-liter Ferrari Monza replaced the 2.5-liter Maserati engine. As a Maserati/Ferrari, Sharp finally raced it, four times, before selling the car to Tracy Bird [another name not mentioned].
As for "Gary Laughlin briefly owning chassis 2432, before it went to Connell", Laughlin had a one-off race after returning from an offshore oil exploration trip, and was invited by Connell, who owned chassis 2430, to give that car a try. Laughlin never sat in 2432 or even owned a Maserati 200SI.
The car sold for GBP 2,128,000.
All research: Willem Oosthoek