Monty’s large terracotta pots

Hello. Does anyone know where to buy the large Terracotta pots Monty uses? Are they silly money? And if so, is there somewhere to buy similar pots for cheaper? I was looking at Errington Reay based in the NE. Thanks in advance for any ideas.
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https://potsandpithoi.com/
I think l may have seen the markings on some of is pots of the Yorkshire Pot Company, they are trade only supplying to garden centres such as this one
https://bunkershillgardenshop.co.uk/pots-barrels/yorkshire-pots/
I think it's a question of you pays your money and you takes your choice, cheaper versions may prove to be a false economy, for example not frost proof.
You can get very good imitations instead.
https://forum.gardenersworld.com/discussion/comment/2206777#Comment_2206777
However, @Sazz101, if clay is what you want, you can reduce and even eliminate frost damage on cheaper terracotta pots by painting them with upto 3 coats of clear acrylic varnish which doesn't change the colour but gives a waterproof seal. However, you won't get the aging patina of algae and moss.
Hubby just said he thinks Monty gets donated them by the companies, people see them and its a free advert. He's a belgian cynic.