These KRAJCZAR black numeral actually have 2 main categories " Stereotype (1888) and Electrotype ( 1889-1899), witch are not listed in Scott, and then the Electrotype are divided according to their watermark and perforations. If you can find one where you can see clearly the "IV" or the 4 point star in the watermark, it has great value
Actually Scott list only 40% of the KRAJCZAR serie, It's a very bad catalogue for Hungarian stamps.
KRAJCZAR is the hungarian name of the "Crown of Stephen and letter" series
it's a IV not a VI , the wateramrk is of course reverse from the back
