It's really depending on what the poster is signed with. If it is signed with a ball-point pen, the value on the open market will decrease to less than if it wasn't signed. A ball-point will make indentations on the paper and this is considered "damage".
If it is signed with a felt-tip marker or something that doesn't make pressure indentations, like a gold or silver metallic felt-tip marker, then you will get a higher price.
I found this out the hard way when I went to go sell my autographed Mark Messier rookie card. It was signed with a ball-point.
If it is signed with a felt-tip marker or something that doesn't make pressure indentations, like a gold or silver metallic felt-tip marker, then you will get a higher price.
I found this out the hard way when I went to go sell my autographed Mark Messier rookie card. It was signed with a ball-point.
