Four Petal Square. Feels like a classic engraved design. I used to make a recessed version of this. 
Small only on 1/4" square stock, actual 6.4mm on edge, 8.3mm diagonal.
Since this is a smaller stamp with a raised design, it's a relatively easy stamper.
Shanks are a little less than 3" (75mm).
These are sawed, filed and engraved by me.
They may each be a little different, as I make one for you special.
Hardened and then tempered tool steel. Rockwell hardness batch tested.
    
  
  
Small only on 1/4" square stock, actual 6.4mm on edge, 8.3mm diagonal.
Since this is a smaller stamp with a raised design, it's a relatively easy stamper.
Shanks are a little less than 3" (75mm).
These are sawed, filed and engraved by me.
They may each be a little different, as I make one for you special.
Hardened and then tempered tool steel. Rockwell hardness batch tested.