I must just mention that these cats are not with me, but with a friend who has no access to the internet, so has asked me to put this cat on lost sites. Thought I'd pop in here. Sorry if the description seems a bit stilted, but it's been copied and pasted: I've had to enter the same info over and over.
A tortie and white mother and two kittens found on Hampstead Road by a friend with no internet; she almost ran over one of the kittens.
The mother is affectionate, slim, with a long tail and pointed face-shape. Estimated age of mother, about 6mths to 1yr; kittens are about 8wks.
The mother has been scanned, but no microchip found. Fur missing from around her neck where a collar previously worn, perhaps.
My friend is certain that mum isn't feral and has had a loving home because of her friendly nature. She may have "nested" inappropriately and become lost.
If this may be your cat, leave a message on 0777 942 7651 and Rebekah will get back to you asap.
Catherine