You're buying the Auburn tool Co. Plane blade and chip breaker shown in the photos.
The blade measures almost exactly 2-1/6" at the cutting edge, and is just over 7-1/4" in length.
This blade and chip breaker are in excellent condition for their age with minimal small pitting and some staining. The logo is still crisp and clear.
The blade was cleaned and sharpened, although most of the bright reflective surface was as found !