SUDAN SG96/a/102/a 1948 (1 2 3 5 10 15m) matching corner blocks inc Nun Flaw U/M

1948 New Arabic six values (1 2 3 5 10 15m) matching upper left corner blocks of 6 (3×2) with plate numbers 1 (x2) each with R2/3 nun flaw plus additional matching 2m and 4m blocks of 6 showing R2/3 without the nun flaw unmounted o.g. Odd insignificant blemishes (wrinkles shortish perfs) still a most attractive and interesting group. Purchased from Stanley Gibbons (still on their card)