without looking, noiseless chips are usually paper, could be rubber.

Look:
http://www.antiquegamblingchips.com/DymentCartoon.htm

The others (The second Number (2) - is a BLAX wood/leather rack with several styles of chips made of ??? (feels like bone or ivory or something like that). The chips are deeply embossed with an old three mast sailing ship on some and a lobster, with the word lobster on the others; also there are flat chips of same the material (???) with a large crown and three feathers.) are common clay composition generic poker chips -- the first group are embossed type; the three feathers is "engraved' --- Prince of Wales "logo" for the British House of Windsor (royal family there now). The Pr of Wales is the title for the one to inherit the crown, next in line, I believe. ... .... ..... Blax Co. made a lot of poker chip racks in the 1920s.

Robert