Standart tiles size

[Jexa]

Hi all!
Who knows standart tiles size on mahjong sets and corresponding types (S, M, L, 2L, 3L)?
I saw different value the same types. For example:



Is it real corresponding value?

[Shirluban]

The \"standard\" size depends on the kind of set (Chinese sets are bigger than Japanese).



See also the \"TILE SIZES\" chapter here:
http://www.sloperama.com/mjfaq/types.htm

[Jexa]

See also the "TILE SIZES" chapter here:
http://www.sloperama.com/mjfaq/types.htm

I saw this earlyer. But you pictures and mine - it pictures japanese sets (not chinese). And they have different tile size and types. For examle:

M-type
your - 19x25,5x15
mine - 19,1x26

L-type
your - 19,5x26,5x16
mine - 26,7x20

Why?