I am posting this for a fellow Deauville owner so here goes.
He is looking for a 3 ribbed crankshaft pulley for a Deauville, not the usuall 2 ribbed like the one used in a Pantera. It is a 4 bolt type with an OD of 5,5 inch and a depth of about 2 inch. It is possibly a WIndsor type since they did use those in the later series but I'm not 100% sure.
The billet ones that I have seen for sale seem to be too deep or have unequall spacing between the grooves, which is what this one does not have.
Any leads or info are much appreciated.