Just a plane. I have been working on tuning up a old bench plane my wife bought me a few years ago. Back in my post Flat Sole I started flattening the sole of the plane. I have made it through 80 grit and moved to 150 grit. I will contiue working with 150 grit until all the 80 grit scratches are gone. Then I will work my way through to 220 and 400 grit.
From what I can find this plane appears to be a Stanley Defiance #3, which was made post WWII.