Ptolemaic early cataphract

From the new sketchbook. I totally guessed on the equipment.

"For the war against the Aithiopians Ptolemy recruited 500 cavalrymen from
Greece. To those who were to fight in the front ranks and to be the
vanguard - they were a hundred in number - he assigned the following form of
equipment. For he distributed to them and their horses garments of felt
(stolas piletas), which those of that country (hoi kata ten choran; "the
natives of the country" in Burstein) call kasas, that conceal the whole body
except for the eyes."

edit: I was told D.Head probably has it wrong. It should be a dude from the army of Ptolemy V. around 187 BC.