https://en.wikipedia.org/wiki/Hand_axe
The first published picture of a hand axe, drawn by John Frere in the year 1800.
update needed here then.
Handaxes are generally thought to have been primarily used as cutting tools,[1][4] with the wide base serving as an ergonomic area for the hand to grip the tool,[5] though other uses, such as throwing weapons and use as social and sexual signaling have been proposed.[1]
Wikipedia *now* says “the first published representation of a hand axe was drawn by John Frere and appeared in a British publication in 1800.”
He died in 1807.
https://en.wikipedia.org/wiki/John_Frere