1925 ¼ pi. green rouletted 13 with the - Hejaz Government 4th October 1924 - overprint in red (pos.1-10), error overprint inverted a fine unmounted mint bottom corner marginal block of 8 and vertical corner marginal pair, some stamps small stains ( 3 stamps affected), together forming a fantastic positional piece, cat.v. £ 1300+