These are made of Teak from Beams I rescued from a wood dump. "Overlooked leftovers" from the razing of a equipment barn. Our town has the claim to the first regular scale RR traffic line including a main station/ railroad car/steam engine workshop.  Operational from 1856, still runs in the summer by a non-profit. There was  much teak used in the exterior of passenger cars. Many are restored. These 4 to 6 meter beams were grey on the outside, but not even a 1mm under- all kinds of color. The handles are lighter from a recent sanding, the heads have darkened quickly as the oils oxidize. when oiled with linseed, they become very dark
The beams, 65mmx150mm are hard as a rock from age. I needed some mallets for timber mortising, it was the densest wood I have- so I went with it.
For reference, There's a big 35mm Karcher framing chisel, and a regular size 16mm
One large model went directly to a friend who teaches a local 4-8th grade woodshop class.
I'm left with 2,  95x135 and 1, large 120x160. The latter head weighed 1.6lbs.  W/handle 2.2pounds.

Those are beautiful, and a great use of reclaimed wood. I'm a huge fan of that!

Cheers,

- J