Evo Aluminium seat post of unusual size 28.6mm

Unused Evo 28.6mm diameter aluminium seat post for sale.
I bought it for a vintage frame that had a seat tube squished down to fit a 27.2mm post. I thought this would fix that issue but it turned out that it need something in between. I tapered the first centimetre or two with sandpaper before I knew that it wouldn’t fit, so that’s why it’s worn down on the bottom. It has never had a saddle installed though.
It is about 280mm from minimum insertion to the saddle rails and 395mm from the bottom of the post to the saddle rails.
$20.00, OBO, located near Mount View/ Renfrew