The first set of Aden Court Fee stamps was India's King George V stamps overprinted. Only the 8a and 1r values are recorded, but possibly more exist. The King George VI stamps were also similarly overprinted. Thirteen values were issued, ranging from 2a to 20r.
The first set of Aden Revenue stamps was India's King George V keytype with the inscription ADEN REVENUE at foot, with values from 2a to 10r. Around 1945, a similar set was issued but with the portrait of King George VI and with values ranging to 50r.