| COUNTRY | DENOMINATION | Y# | YEAR | SUBJECT | Catalog | Detailed Picture | 
| KINGDOM | ||||||
| al-Mutawakkil 
        Yahya bin Muhammad (Imam Yahya) | ||||||
| Milled Coinage 1 Zalat = 1/160 Riyal 2 Zalat = 1 Halala = 1/80 Riyal 2 Halala = 1 Buqsha = 1/40 Riyal 40 Buqsha = 1 Riyal | ||||||
| 1/80 Riyal (1/2 Buqsha) | AH1350 (1932) | (With 
        legend "Rabb al-alamin") | ||||
| 1/40 Riyal (1 Buqsha) | AH1349 (1931) | (Large "Sana'a" 
        in legend) | ||||
| 1/10 Imadi Riyal | AH1363 (1944) | (Without "Rabb 
        al-Alamin" on obverse,"Sana" above date) | ||||
| al-Nasir Ahmad 
        bin Yahya (Imam Ahmad) | ||||||
| 1/80 Riyal (1 Halala = 1/2 Buqsha) | AH1379 (1960) | (Bronze) (with "Sana") | ||||
| 1/80 Riyal (1 Halala = 1/2 Buqsha) | AH1378 (1959) | (Aluminium) | ||||
| 1/80 Riyal (1 Halala = 1/2 Buqsha) | ND(1956) |  | ||||
| 1/40 Riyal (1 Buqsha) | AH1373 (1954) | (Bronze) 
        ( large "Sanaa" and with "Sana") | ||||
| 1/40 Riyal (1 Buqsha) | AH1374 (1955) | (Aluminium) | ||||
| 1/40 Riyal (1 Buqsha) | AH1377 (1958) | (Small "Sanaa" 
        and with "Sana") | ||||
| 1/40 Riyal (1 Buqsha) | ND(1956) |  | ||||
| 1/4 Ahmadi Riyal | AH(13)77/5 (1958) |  | ||||