unmounted mint Block of Four 1978 Aviators 18c. Hinkler marginal block of four from the right of the sheet, variety imperforate, fine unmounted mint. Scarce. S.G. 659a, £1,200+
unmounted mint Block of Four 1978 Aviators 18c. Hinkler marginal block of four from the right of the sheet, variety imperforate, fine unmounted mint. Scarce. S.G. 659a, £1,200+
unmounted mint Block of Four 1978 Aviators 18c. Hinkler marginal block of four from the right of the sheet, variety imperforate, fine unmounted mint. Scarce. S.G. 659a, £1,200+
