Specialized Russia

1924 3r brown, green, type I, imperforate single, large margins all around, natural gum wrinkles, slight h.r., natural inclusions and minute red ink offsets, v.f. (when discovered at the printers, most of type I imperfs were either destroyed or invalidated and stamped "Brakovano" (defective) in red ink), accompanied by a 1986 Mikulski certificate ("as of now, only a few of these rare varieties are known")(Standart 057Pa) -
Estimate price: $4000-3500