Copied and pasted from the 'blurb' in the Ebay listing:
"I'm selling these as 'decorative items only' ( or, collectables), since Fred gave them to me for display - saying they were 'knackered'
But, imagine the use they've had by 'Our Fred' over the years?
You can see how much he worked with them, and ground the blades in his workshops to keep the edges nice and sharp
They were used on all sorts of word-working jobs as the years rolled by, as Fred later shot to fame in the late 70's, he continued to use them up until 2002, when he gave them to me because I said they were 'cute'."
In this instance, I'd be more inclined to agree with Fred.....