10 Pfennig Crown/Eagle, dark rose-red, fluorescing bright ochre under quartz lamp (basic stamp MiNr. 47e), cancelled with single-circle postmark "(T)SINGTAU * a 6/11 99 (KIA)UTSCHOU", very well preserved, unsigned, photo certificate Jäschke-Lantelme (2017) "apart from a small perforation split at lower right, no further faults. Examples of this shade are very rare; in my opinion the small impairment is insignificant".