From top: ten 十, a cap 乛, leader/head 头 (= the big 大 one with protruding eyes 丶)
Mnemonic
(together with: to buy 买, which shows that leader 头 with the cap 乛) This cap 乛 is what the leader 头 has bought 买, but for 10 十 (coins) he wants to sell 卖 it.
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