Does anybody recognise this hidden cistern make ?

[Ponx%4]

Its leaking into the pan. Hoping to find the make so I can get a new seal. No makers mark anywhere..

Please see attached picture

 

[fowlerboi]

You need to take that front plate off and take some pictures of the components inside as best you can.

I did one recently which had no markings and I had to go by the colour of the components. Took 2 hrs to find the correct fitting

 

[IND_Nick]

As above, you'll need to remove the flush plate and get some shots of the internals. If you can remove the flush valve you'll get a better idea. There's an online company called 'Fix the bog', if you email photos to them they are normally very good finding spares.