Quoted from TaylorVA:I think it is great that they are being offered up, I am just questioning the COA and want to know how they know these are One of kind items. From what you are saying they most likely are not, which definitely will affect value IMO.
And never mind they are less and less a unique piece (even if everyone is different) when they become common place because hundreds or thousands of drawings are sold.
They were unique talking pieces when they were things that normally wouldn't be in the public's hands.. because they were internal to the factories. The fact it was outside that process kind of made it so interesting.. even if the subject matter itself wasn't all that fascinating. Now, that will be diminished because similar drawings will be so common in the open market.
The original art and concept stuff is a bit more interesting because it has real creative aspects and uniqueness. The mechanical assembly drawings are less so IMO.. and the 'rarity' (if you even want to call it that) of having such drawings goes down by the day.