Unknown petrol filler cap

[Miniliteman]

Hello all,
anyone recognise this petrol filler cap I found in the garage?
Maybe Peugeot 204?
Thanks.

[Graham]

no idea sorry

[fingersnfumbs]

I recon its Frech, see similar before but much more than that Im afraid Im out.

Of course once someone does identify I it I will say 'ah yes thats it'.