Any shops in London selling gumwall tyres?

i have conti GP4000 with a brown/gum sidewall.

hard to find, but a good tyre.

I found it in 15secs. ;)

Michelin (Dynamic) has 2 'new' tires with gum and white walls, both versions come in 23c and 25c.
They retail for under a tenner on the bay, I used to have them on a Tourer (my 1st UK bike), they're good for the pound.

(^Clicky)