Point 6. Some classifiers

duaN (ดวง) is used as the classifier for stamps and for various kinds of lights (e.g. the moon, fires, lamps, etc.). It is also used as the classifier for eyes by some, though taּ 'eye' is also repeated as its own classifier by others.

baj (ใบ) is used as the classifier for cards, also for certificates and other similar compounds containing baj as their first member. These uses are in addition to those you have previously learned.

cha$ba$b (ฉบับ)  is used as the classifier for letters, for newspapers, and for telegrams