Puzzles involve a car that may be the one driven by Grace Kelly in “To Catch a Thief”; possible Civil War POW photographs; and a 1914 motorcycle that might have been used in WWI France.
| Title | History Detectives - Season 4 Episode 9 Grace Kelly Automobile; Illicit P.O.W. Photos; Mystery Motorcycle |
|---|---|
| Year | 2014 |
| Genre | Documentary |
| Country | United States of America |
| Studio | PBS |
| Cast | |
| Crew | |
| Alternative Titles | History Detectives Special Investigations, History Detectives: Special Investigations |
| Keyword | investigation |
| First Air Date | Jul 14, 2003 |
| Last Air date | Jul 22, 2014 |
| Season | 11 Season |
| Episode | 116 Episode |
| Runtime | 60:14 minutes |
| Quality | HD |
| IMDb: | 7.00/ 10 by 3.00 users |
| Popularity | 1.576 |
| Language | English |
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