1955 Wheat Penny Die Crack?

The first two are probably from the same die pair. The second image of LIBERTY shows a lamination starting between the IBE area on LIBERTY.

I think you coin is one of the stages of Cohen's 55-B105 to 55-B109 (page 33 in the "THE CLASSIFICATION AND VALUE OF ERRORS ON THE Lincoln Cent" ). It depends on the markers on the reverse.
Also I think it's listed as Hardy Index 55P-4SBL+4 (Semi Die Break page XXXVI in the BIE Handbook).
I would like to list your coin on Cuds-on-Coin with your permission. Please email your full name and if possible a full image of the reverse so I can figure out what Cohen stage it is.
http://cuds-on-coins.com/
JC

The books are very hard to find. I don't know of any BIE Handbooks for sale. There is one of the "THE CLASSIFICATION AND VALUE OF ERRORS ON THE Lincoln Cent" listed on Amazon Books.

You can contact me by email , on my post to your thread click on my name JC Stevens "In Blue above the profile of Lincoln on the left side a window will open my Profile and under Contact Information you will find "Send a Email. Also on the COC WEB Site has my email address.

From the images you posted the coin is Cohen's 55-B107. The 55-B-105 will not have the Die Chip on the Left Wheat but it has the Die Chip on the stem of the T in CENT. Note these are called Die Chips and not Cuds. A Cud is a die break that involves the rim and at least a little bit of the adjacent field or design. The LDB4-1955-001 is a different die than your coin.

Thanks for the images. I'll list your coin as soon as I get your email.

JC

Congratulations on your find and new listing.