When I visited England years and years ago I loved the biscuit you described. I think it was called.a Yorkie bar. Loved them so much. They weren’t available in the U.S.. I even wrote to Cadbury directly but they said they couldn’t import them

Martina
Yorkie bars are still available and aren't what BW is thinking about.The Yorkie bar was the first chunky pure chocolate bar. It changed smaller bars from thin mm thick bars into a bar you needed to bite off and it had a better taste for it.
I can't think of Yorkie bars without remembering 'I like truckin' song from Not the 9 O'clock news

Oh and I remember being allowed to have some 'crepe' shoes when I was into Showaddywaddy in the late 70s as a young teenager. I loved those shoes.

Oh yes, I had my feet properly measured and had the same Clarks sandals you pictured. Having (for the time) relatively large and broad feet I continued to go to Clarks for years. Until I went abroad where larger, broader feet were catered to. And I found ecstasy when I was introduced to someone who had a wholesale shoe business. I had a collection of about 30 pairs of sandals and shoes, colourful, shiny, beaded etc ad infinitum.

Old Jamaica?

Gosh, I remember Clark’s shoes from the sixties.

New shoes every September, start of a new year at school. We used to put Blakies on our shoes, run, skid and create sparks.

The Cadbury bar I liked so much had raisins in it and maybe some biscuit. Guess I’m remembering the same candy bar you are searching for!

The candy bar I remember so fondly was not pure chocolate. Definitely had raisins and probably biscuit. Second favorite was Cadbury Fruit and Nut.

Didn't Clark's shops have some sort of foot X-ray machine for children's feet?

Yorkie definitely did a bar with biscuit in it, but it wasn't the one.

Old Jamaica had rum in it, and had a fully rigged schooner on the sunset-coloured label I think. Also not the one.

I never saw one of those x-ray foot machines, but they were a thing (and eventually banned): https://en.wikipedia.org/wiki/Shoe-fitting_fluoroscope

I don't remember those foot X-ray machines - before my time I think - but I do remember foot-measuring machines where the edges - front/back and sides - closed in, with the slight frisson that you might be the unlucky one whose foot was crushed. And more recently they've had optical scanners.

More here.
* http://museumofradium.co.uk/pedoscope/
* https://alfredgilletttrust.org/2015/05/22/measuring-feet-in-the-21st-century/

There were and are hand-held devices - historically, the Ritz stick, the Brannock device, the Scholl device. I most clearly remember the one with the tape over the top.

And now I think I understand shoe sizes. UK sizes start at 12 (= 12 inches), and then increment up or down each size by a barleycorn (1/3 inch). Continental sizes measure the last in "Paris points", which are 2/3 cm each. And then you are meant to add two more points to get a comfortable size to wear.

So my 8 is a 42, which is 10.66 inches (12 - 4/3) or 26.66 cm (42-2 * 2/3). That is the theory, but the numbers do not quite meet!

I'm fairly sure my sisters had similarly styled sensible Clarks shoes in the mid to late 1970s.

All I can say to that Andrew is, I can now see why I can never find shoes that fit!