I'd say it was a finger, Sergeant.
3 seconds sound clip from the Carry On Screaming! movie soundboard.
You can hear this line at 00:10:07 in the Blu-ray version of the movie.
Quote context
[...]
- I'm talking to my assistant!
- Don't worry, Sergeant. Got it down.
- Good.
- So, that's all you can tell us, Mr Potter?
- There is one thing. I found this where she'd been sitting.
- 'Ello, 'ello, 'ello! What have we here, then?
- I'd say it was a finger, Sergeant.
- I know it's a finger! Is it... one of... hers?
- No, of course not! What sort of girl do you think I'd go out with?
- Right. Take that down to the lab. I want a full report first thing in the morning.
- Yes, of course, Sergeant. Why didn't I think of that?
[...]