A Toby jug which made £1,800 at auction had been bought for just £110 a year before.
Last week Bedfordshire on Sunday reported on the bumper result when the decorative jug, featuring wartime leader Winston Churchill, went up for sale at Charles Ross auctioneers in Woburn having been valued at the business's new partner office at Cooper Beard in Bedford.
Now it has emerged former owner Trev Waywell, from Clapham, bought the piece for just £100 plus commission at Bedford auction house Peacocks about a year ago.
The Toby jug enthusiast has amassed dozens of examples since he began collecting with a Mr Punch jug bought from a shop in Ampthill 50 years ago.
He spotted the Churchill jug, created by the relatively unknown potter Leonard Jarvis, as an identical model in a collectors' reference book.
Mr Waywell said: "I saw it in the preview and thought 'I'm sure I've seen that one before'.
"I went home and checked and realised what it was. I was really pleased to get it at such a good price.
"I put it back up for sale last October but it didn't reach the reserve price.
"Then I saw that Cooper Beard was doing valuations so I went to have a look and they suggested I could get around five to six hundred for it.
"I decided to go ahead but I wasn't even able to attend on the day as I had to take my wife to hospital. It was a lovely surprise to hear it had done so well."
Now Trev is busy assessing the rest of his collection, some of the highlights of which are an Old Bill the hunter jug, of which only two have previously been recorded, and an equally rare model of The Snufftaker.
Each has an estimated value in excess of £400 and the pair will be coming up at the Ross action in the near future.