Antiques Roadshow expert gives value to German Spy Flask which he claims was ‘worthless’

However, the owner of the peculiar item heard how the flask was, on its own, not very valuable.

The specialist explained: “Some of the items we get on the roadshow are quite innocuous.

“If you looked at them on their own in a junk shop you probably wouldn’t look twice at them.”

“As an ordinary item in a junk shop the flask would be worthless,” the expert continued.

He concluded: “It is quite an extraordinary little object, with the story attached to it, obviously has some value. I would put perhaps £150-200 on it.”