expert Catherine Southon was left gobsmacked when a World War One periscope fetched an astonishing amount of money on the show.
The item managed to bring in an "incredible" amount of cash, leaving the presenter emotional as she couldn't believe her luck.
During an auction segment on the BBC One programme, the auctioneer announced: "I've got lots of interest on this WW1 antique."
"At £220, looking for £240 on the phone," he added.
"£240, £260 is with me, £280. £300 is with me." As the bidding war escalated, Catherine could hardly believe her eyes.
"I can't believe this," she confessed to the cameras. The 47 year old has also appeared on popular shows such as Bargain Hunt, Flog it! Put Your Money Where Your Mouth Is and Trade Secrets.
The auctioneer began by saying: "I've got four commission bids left on the book and I can open up the bidding at £220."
Her co-host jokingly suggested: "I might just go home now."
Meanwhile in another episode, Paul Laidlaw joked that he was going to abandon the show after managing to bag one of his biggest profits.
After making a profit in nearly every time, and making a whopping £191 proft on the day, Paul said: ""Let's throw the profits on a day's outing."
However, host Tim Wonnacott quickly intervened as he insisted: "No you will not, let's get the abacus out."
Celebrity Antiques Road Trip is available to watch on BBC iPlayer with episodes also available to catch up with via the BBC iPlayer on demand platform and catch up service.
You may also like
Sir Alex Ferguson pictured for first time since seeing Man Utd contract ripped up
MAFS UK delivers biggest shock yet as couple 'sent home' by production over behaviour
Dubai pays off Dh47-billion debt as revenues get boost from IPOs, 9% corporate tax
The big players including Rohit-Virat are no match for him, now he reminded this team of his grandmother, and he ate up the top order for 9 runs.
Ex-jump jockey apologises for crying after selling horse for £630k on 'unforgettable day'
Sir David Jason's daughter said 'I am sorry' as she made heartbreaking plea to star
Cabinet approves MSP for Rabi crops for marketing season 2025-26
Ban on talking about Team India, the Pakistani team made a surprising decision.
At least 90 people killed, 50 injured after gasoline tanker explodes in Nigeria, police say
Jenson Button in Lando Norris plea to McLaren as Michael Schumacher comparison made
DWP to send job coaches to visit 'seriously' ill people on mental health wards
'Rohit Bhai Told Me You Have No Idea What You've Done': Rishabh Pant Recalls Iconic 2021 Chat
Chhattisgarh CM Hikes Dearness Allowance to 50% for State Employees Ahead of Diwali
Offbeat: How did Lord Krishna bring back the dead Arjuna to life in Mahabharata, know here
Who will become the new captain of Team India in place of Harmanpreet? Not Mandhana, this player is the number 1 contender.
Simple method to plant spring bulbs to create explosion of colour in spring
Jamie Oliver's very unexpected ingredient into stroganoff hailed a 'game changer'
'I bought a mystery Starbucks bag for £3 - and struck gold with what was inside'
Liverpool is about to find out if Jamie Carragher was right about Thomas Tuchel
Meghan Markle 'outraged' late Queen with 'lie' over Lilibet's name