While investigating a murder case, a detective stumbles upon a rare-stamp swindle involving the victim's twin sister.
You can now watch Penny Gold online on the following streaming providers in the United States.
| Directing | Jack Cardiff | Director |
| Writing | David D. Osborn | Writer |
| Writing | Liz Charles-Williams | Writer |
| Production | George H. Brown | Producer |
| Sound | John Scott | Original Music Composer |
| Camera | Ken Hodges | Director of Photography |
| Editing | John Trumper | Editor |
| Production | Lesley De Pettit | Casting |
| Art | Bert Davey | Art Direction |
| Costume & Make-Up | Courtenay Elliott | Costume Design |
| Costume & Make-Up | Gordon Bond | Hairdresser |
| Costume & Make-Up | Wally Schneiderman | Makeup Artist |
| Sound | Danny Daniel | Sound Recordist |
| Sound | Ted Karnon | Sound Recordist |