Your comments are a bit disingenuous to say the least.
The model number of your VC platinum is 4961 as you have written, but I'm sure you know that already.
It took me 5 seconds to google it and find a host of references and photos for that model. So that's a hint.
As for valuation, I suggest you contact, Christies, Sotheby's, Antiquorum, Phillips or Bonhams.
All these auction houses will be able to help you.
And given the text on your envelopes, it is not suprising for someone to conclude that your postings are a sales pitch.
In any case, I would suggest that any Loungers who wish to pursue this matter further should do so through private email.
I hope you are sucessful in finding the information you desire.