What sort of hinges are these?

[Freddyjersey2016]

I am replacing some 40+ years old wooden doors on a concrete sectional garage for a Scout group.
The hinges used to connect pairs of doors are in poor condition as well.
Any idea what type of hinges they are, so I can source some new ones?

TIA

 

[Seiken]

They are strap hinges, search on Amazon if you cannot get them at the local diy

 

[Phil Pascoe]

Don't forget if any of them are on the outside you need either to bolt them through in places or else to use clutch head screws.

 

[AJB Temple]

Yep. Folding strap hinge. Readily available galvanised on-line but doubt if most sheds, even trade, will have them in stock.