You're buying the Craftsman 3732  block plan shown in the photos.
The plane measures just over 6-3/4" in length, the blade is approximately 
1-5/8" in width.
The BB designation which can be seen on the plane body and the blade, according to resources indicate this plane was manufactured by The Millers Falls company, for the Sears company.
This plane is in excellent working condition, and has been completely gone through and tested for full function.
Cleaned, oiled and sharp.
Aside from personal preference of possibly honing the blade, this plane is ready to go to work.
The lever cap and blade may be removed and placed in package to facilitate shipping.