Blade edge: 52mm ? No cracks in the base. Mark: Yoshihiro This plane was included when I received a collection of planes such as Kinshiro, Tengu, and Toshinari, so I believe it's a usable mark. Light rust removal, sharpened only on the blade edge (1000 grit). Please assume it needs to be resharpened. There may be dirt, rust, chipping, and wood splitting. Please examine the images carefully to assess the condition. Will ship the same day or the next day. Thank you.