On dgcr.com, I posted this Proto Valk to see what people might think it is worth. The only response said something like $8-$9. That might be right, but it might not. I have no idea. As you can see, this is a proto stamp, and the Valk is only identified by the VK on the bottom of it.
Some other guy wrote and asked if I would sell it.
I don't mind selling it, but I don't want to make a mistake on price.
I suppose the true answer is at eBay. But short of that, anybody have any opinions?