The title should be provenance not that nice place on Rhode Island.
When I acquired my Ref 5251, it came with a number of documents including the scanned letter from Schaffhausen to the owner in 2004. I was fascinated that IWC gave an indication of value of CHF 12,000. They also stated that around 200 pieces were produced. Moreover, a valuation was given for a Ref 5441 of CHF 15,000. The letter does not say whether the Portuguese was steel, gold or platinum. The highlighter on the original letter was not my work but I have removed the owner's name, address and reference numbers from the scanned image.
I can understand why IWC does not give indicative values anymore but I am surprised they did so as recently as 2004.
Incidentally, if you are a fortunate owner of a Jubilee Portuguese, please note: IT IS NOT WATERPROOF.

