For Trade Vintage S M camera cases, Japan, unknown company? Medium format?

Ken below has informed me that these are Mamiya cases, Thanks!

These are marked with a logo, " S M", and marked made in Japan.
Other than that, I know nothing else. If you know, feel free to comment!

Case one, sort of a half dome shape is 7" x 4" x 3.5", has strap loops in the back, good condition, inside is felt lined

Case two is two parts, openings for knobs, some wear on the leather in places. 8" x 6" x 3.5" See followup for images (I messed up)
All snaps work. Red felt inside lining, but not on the sides.

I'm guessing $25 for both plus shipping.
Shipping $10
I will ship worldwide for actual postage.

The side view in your center image looks like a case for a eye-level prism from a Mamiya TLR. I have the glass prism for a Mamiya C330S TLR and the case looks nearly (but not exactly) identical. The displayed logo is definitely Mamiya.

Ken

More pics available

My apologies, this is supposed to be in the sale, not trade section.