It's worth whatever someone is willing to pay for it. Unfortunately, errors like this often don't command a significant premium, unless they are in a key location such as the "speared bison" or "high leaf/low leaf" errors.
I agree with Simon. You'd be lucky to get 99 cents for it on Ebay and that's if you also offer free shipping. There just isn't a demand for random die gouges.
I have another cent zinc. It has MD and/or uneven surface and plating humps that form kind of a hole between the mouth and the nostril.then a ridge from the nostril to in front of the beard. It looks like a huge booger coming out of his nose. It's quite prominent. I didn't think much about it after I found out it wasn't a doubled die. Now you got me thinking what to call it? Tissue please" or boogernose. Hahaha
How about calling it a Lincoln cent in bad condition. Who wants to hold a booger between their fingers? It never fails to disgust me when people come up with "bidiotic" names. Chris