This arrived from Belgium the other day,
an aluminium Eddy Merckx Pista frame set..
comes with the Merckx ‘Duivel’..
I have to see what I can find out about the frame, I may try and contact the factory, the frame came with a Campagnolo bb installed, and a Modus headset, which I will probably keep.
Saarf London 
This frame was used by the Belgian National track team in 2006, these frame are very rare!
Thanks Jurgen , many , many thanks , were there many made ?