Vintage 1960s Ken Clone Striped Short-sleeve Shirt

Description

This is a vintage 1960s Ken clone half-sleeve striped shirt in very good-excellent condition. There is 1 snap that works, and 4 buttons.
The shirt is a very nice heavy cotton/linen material. I've done some research but couldn't find anything about it (there's no label), but I'm pretty sure it's a Ken clone. There's some slight fraying/wear on the pocket (see photo) and the bottom of the shirt is folded up so needs to be ironed to lay flat.
This was mine as a child, so vintage/original item from a smoke-free/pet-free home.
US shipping only.