Lot 384
384
VAT rate of 17.5% is payable on hammer price plus … Read more
unmounted mint Block Larger Than four -- 3p. ultramarine variety vertical red line, a right margin block of twelve, column ten showing a distinctive red line, unmounted mint

Details
unmounted mint Block Larger Than four -- 3p. ultramarine variety vertical red line, a right margin block of twelve, column ten showing a distinctive red line, unmounted mint
Special notice
VAT rate of 17.5% is payable on hammer price plus buyer’s premium.
Further details
This error was traced to a faulty transmission roller between units containing ink used for printing the previous stamp (possibly the 1p.), and occured at the beginning of the run of 3p. stamps from cylinder "8" phosphor "7". Two sheets were discovered, so only forty stamps exist