Vintage 80s Japanese rainbow checkered casserole dish by Algar, mod geometric

Vintage 80s Japanese rainbow checkered casserole dish. In great vintage condition. No chips, cracks or crazing. There is some slight wear throughout on the bottom, quite minor, see video or last photo where the light catches for an example. I recommend hand washing all vintage ceramics. Length - 12.5” Width - 6.75” Height - 1.5” Weight - 643 grams