The handle is 2 pieces of 4/4 maple about 2×12 inches. The head is 4 pieces of 4/4 reclaimed ipe about 2.5×7 inches.
Getting the ipe flat without a jointer was trial and error. Hand planes dull after a few strokes and I didn’t want to risk my planer knives, so it was a matter of using the table saw and skimming a little at a time until the pieces were reasonably flat. “Reasonably” meant a little more clamping pressure than usual but at least with ipe you don’t have to worry about leaving marks, it doesn’t dent. Not that leaving marks would have mattered since they would be turned away.