2 Mark bright gray purple, vertical block of six, as well the right upper stamp with plate flaw VI, used "APIA 3. 12. 90", multiples of this stamp are general rare - in the d-color especially rare, photo expertize Jäschke-L. BPP (2013) : "well perforated and shows except for one only in the ultraviolet light recognizable cleaning / stronger rinse no further defects. Whether the unit original to the piece belongs, is unverifiable. ", Michel 9. 000. - despite the defects nevertheless rarity German colonies!