Note that the "Vampire Bite" variety should also show damage to the right fleur-de-lys decoration above "CENTS" and to the bottom left tip of the numeral 3. Although all the marks and their shadows fade over time, there should still be traces of these additional marks if the neck bites show prominently.
The first example shown by jimjung is actually quite a stunning example showing prominent bites with shadows and very strong marks in the right fleur-de-lys and 3 value. A real beauty. Wow!
I would question the next two examples shown by jimjung since they do not show any trace of the lower right marks and the bites are also a little different than what is usually associated with this variety even in the later faded states/versions.
The fourth example shown separately by jimjung is a great example of how the variety typically occurs with strong bite marks (but without shadows) and slightly less strong marks in the fleur-de-lys and 3 value. The other examples shown in this post match this one fairly well.
More information and examples of this interesting unplated variety can be found at my FlySpecker site
www.flyspecker.com/37-41.html and at Bill Burden's Small Queen CPV Project site
www.wgburden.com/three_pages...s/3F18.1.html