Original Lucasfilm THX plaque

[Hannes Helfenstein]

Hi there,

I'm looking for an original Lucasfilm THX plaque for my collection of items from Dolby, Datasat, DTS, SDDS, THX, Auro-3D, Sensurround, Cinema Digital Sound, IMM Sound and so on (see picture). Other items (plaques, buttons, pins, stickers, posters, pens and so on) are also welcome.

Your help to enrich my collection is highly appreciated :-)

Thanks a lot.