Need to ask about a lot?

TRANSJORDAN - 1925 IMPERF WITH INVERTED OVERPRINT VARIETY 1925 (2 Aug) ½p carmine with 'Government of the Arab East, 1343' unlisted imperf overprint inverted variety, as SG 137a, a fine never hinged mint marginal BLOCK OF TWELVE also showing the overprints misplaced, these all cat £840+ as perforated in SG. (block of 12 varieties)