Letter and symbol sets and boardsIncluded are, e.g. sets and boards with letters, pictures, symbols and pictograms.
22 21 03 04
Boards or folders with a collection of letters or symbols for making words and sentences to point out when communicating face-to-face. The individual product may include sets of letters or symbols.
22 21 03 05
Sets of letters and symbols for making boards for communicating face-to-face.