Cash Out

"Survivors", television series broadcast by BBC1 in 1975, episode number 3 titled "Gone away" and available on YouTube.
At the time mark 14:50 Abby, Jenny and Greg walk into an abandoned supermarket, "Meadow Market", to stock up on food.
Above the tills are signs reading "Cash Out"...which I found odd, so I looked up both on the Oxford Dictionary Online and Word Reference but neither seem to indicate that "cash out" means "till".
In the Word Reference Forum there are several threads titled "cash out" but they all seem discussions on the verb rather than the noun.
So what's the exact meaning of the "Cash Out" signs in that supermarket?
Thank you in advance for your replies.

I have never seen "Cash Out" signs in any shop or store.

Years ago, some UK supermarkets did have signs saying "Cash Only" over some tills.

Years ago, it was often quicker to pay by cash, especially in the days when paying by card involved taking a mechanical impression of the card, signing and checking the signature.

Nowadays, contactless card payments are usually quicker than paying by cash.

I don't recall the term being used, but it clearly just means "checkout". There appear to be three tills (or pairs of tills) and all have the same "cash out" sign, so I don't think it indicates anything special, such as taking only cash.

Linkway says s/he "has never seen "Cash Out" signs in any shop or store" and Uncle Jack says "I don't recall the term being used".
I did find that sign odd myself, and I'm not an Anglophone, but isn't it even odder that at least 2 British have never seen it before while it is actually there, loud and clear, in the Meadow Market, and still visible to all?

LookAtMe said:

Linkway says s/he "has never seen "Cash Out" signs in any shop or store" and Uncle Jack says "I don't recall the term being used".
I did find that sign odd myself, and I'm not an Anglophone, but isn't it even odder that at least 2 British have never seen it before while it is actually there, loud and clear, in the Meadow Market, and still visible to all?

Well, I was only ten in 1975, so you might excuse my not remembering such signs. On the other hand I cannot recall any other signs apart from "Pay Here". Supermarkets were relatively new in Britain at the time (I think the town I lived in, which had a population of about 75,000 people, only got its first supermarket in 1970, and it was about the same size as the one in the video). Consequently, it is likely that the terminology had not yet settled down into the terms we know now.

The supermarket in the video was a TV stage set, not a real supermarket.

LookAtMe, can you find any evidence of "Cash Out" signs being used in real supermarkets?

Linkway said:

LookAtMe, can you find any evidence of "Cash Out" signs being used in real supermarkets?

Linkway, the real supermarkets I go to are located in Italy, a non-English speaking country, but if I happen to see another "Cash Out" sign on some photo or a YouTube video I'll give you a shout.

Thanks.