Rare antique Mahjong tiles? Bamboo-backed tiles

(I think they are bone tiles, but I'm not certain)

Measurements are approximate as I am an amateur.
Width: about 1.8cm, Height: about 2.5cm
Depth: about 1.3cm (back 0.8 x 0.5)
Weight: about 7g

(Point sticks)
Hundred Point: 34 sticks + 19 sticks (different material)
Thousand Point: 34 sticks
Five Thousand Point: 8 sticks
*There are no Ten Thousand Point sticks.
*No flower marks
Two dice + three dice

These have been stored at home for a long period. They show significant dirt, scratches, discoloration due to aging, but there are no cracks or chips. The Mahjong tile case is in a similar condition. As it is sold as is, I recommend closely examining the images. If you are particular, please refrain from purchasing.

Thank you in advance.

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