Vintage rare 1930's Mah Jong Mahjong set 165 tiles

what ya see is what you get
if you are looking at this, you aready know what it is :)
it was my grandmother's, not used in years
you should be able to see the condition in all the picks, looks pretty good to me.
165 tiles
they are all about 2mm x 3mm x 1.1mm
one of them (the extra 'n' tile, the bottom one in that pic) is slightly different and is 2mm x 3mm x 1mm. must be from a different set or something.
there are 6 dice, 5 racks and two keys (i'm not sure if the keys work), but the latch open and close/lock very well
i don't know anything about mah jong :)