What type of tyre repair is this?

[Yons]

From this photo, is it possible to identify what type of plug this is?

[magpie215]

I'd say it's a proper internal patch.

[Panamax]

Yup, a mushroom plug pulled through from the inside to the outside and then cut off.

[Yons]

Thank you both, that's reassuring. It's on almost new rear tyre so I would like it to last a long time.

[E-bmw]

Only just been done by the looks of it.