Here's a stunning petty in a pure carbon steel. Differentially hardened to ~65hrc. Handle is a stunning Koa with dyed Box Elder Burl and nickel silver spacers.
 
Steel: 26c3 @~65hrc
Blade Length: 6.2" (158mm)
Handle Length: 4.7" (120mm)
Overall Length: 11.2" (286mm)
Height at Heel: 1.5" (38mm)
Weight: 3.7 ounces (105g)
 
Petty knives are multipurpose knives that excel at small tasks.
26c3 is a carbon steel. Super easy to sharpen, but at the expense of not being stainless. Requires extra care to avoid rust.