Transvaal Pietersburg 1901 1d Imperf, Control Initials Omitted

1901 PIETERSBURG 1d black on red IMPERF, CONTROLLERS INITIALS OMITTED, Second Printing, Position 4/4, No Bar Under Top Right "1" (SG 6d var): VF/M example, full OG. Interesting piece from the so-called "lost sheets" that were delivered from the printers but unissued through the post office.