| - | 1/2a | grn | ovpt, Queen Victoria |
| - | 1/2a | grn | ovpt, Queen Victoria | 1.00–10. | 1.00–10. |
| - | 1/2a | yelgrn | ovpt, Queen Victoria & British lions |
| - | 1/2a | yelgrn & red | Sultan Hamad bin Thuwaini |
| X | 1/2a | yelgrn & red |
| X | 1/2a | yelgrn & red | Sultan Hamoud bin Mohammed |
| X | 1/2a | emer | monogram of Sultan Ali bin Hamud |