Copenhagen General Post Office
| Issue : | 16-IX-1912 |
| Author : | G. Heilmann |
| Perforation : | 12¾×12¾ |
| Technique : | Typographied |
| Press : | H. H. Thiele |
5 Kr. - Red brownish
| Printing : | 86 750 |
| Mean Price 2010 (€) | |||||
 | | | | ||
| 18A | 605 | 120 | 52 | 180 | |
18Aa | KJØBFNHAVN #44 in each sheet | 805 | 240 | 155 | 295 |
18Ab | Right side of N in CENTRAL POSTBYGNING absent #6 in each sheet | 805 | 220 | 135 | 255 |
18Ac | White spot before left 5 #10 in each sheet | 805 | 220 | 135 | 255 |
18Ad | Spot on the right posthorn #3 in each sheet | 805 | 200 | 115 | 255 |
18Ae | Inverted watermark | - | 240 | 97 | - |
