Nice set, Im no expert but i found a set with lesser character then yours , as i recall the numbered sticks were made of bone and it sold for over 300 at auction, 1920's period. If you have the count sticks and the original dice that helps in my opinion. If the tiles are solid and no wood in the center of the tiles with a dove tail i would say they are newer? perhaps i'll be corrected on this by someone in the forum