Does anyone recognise this hinge?

[KatyMac]

Or know what it's called?

Hi, it's called a flag hinge

Wow! That gets me closer than I have been before!!

Thanks so much

I've found these from your description - which do you reckon?

How do these look?

I think they are fab - waiting to hear about size...size matters!!

Yeah they look like they'd do the job!
You could always unscrew one and take it to a big b&q or diy store to find the closest match - good luck!