Stamps of North Korea, 28 base day
1 to 50 of 144
postage
1953, Jul 28 Truce and Victory issue unwmk
| - | 10w | brn & yel | 1955, p. 10.5 | |||
| - | 10w | brn & yel | imperf |
1956, Jul 28 Women's Contribution to Socialism issue
| - | 1w | sep | p. 10.5 | |||
| - | 1w | sep | imperf |
1957, Sep 28 1530th Anniversary of the Founding of Pyongyang issue
| - | 10w | blgrn | p. 10 | |||
| - | 10w | blgrn | imperf |
1962, Jun 28 Marine fishes (1962) p. 11 (5 stamps)
| - | 5ch | multi | Trichiurus lepturus | .20 | ||
| - | 5ch | multi | Nibea schlegeli | .20 | ||
| - | 10ch | multi | Nibea japonica | .20 | ||
| - | 10ch | multi | Lateolabrax japonicus | .20 | ||
| - | 10ch | multi | Clupanodon punctatus | .20 |
1964, Sep 28 "General Sherman" Incident, 1866 issue p. 12.5
| - | 30ch | multi |
1964, Sep 28 Painting of the Revolutionary Tradition issue - Painting of the Revolutionary Tradition
| - | 2ch | vio | .20 | |||
| - | 4ch | multi | .20 | |||
| - | 5ch | dkbl | .20 | |||
| - | 10ch | olbrn | .20 |
1967, Feb 28 Domestic Animals (1967) p. 11
| - | 5ch | multi | Sus scrofa | |||
| - | 10ch | multi | Capra hircus | |||
| - | 40ch | multi | Bos taurus |
1971, Feb 28 35th Anniversary of Nanhutou Guerrilla Conference issue
| - | 10ch | multi | .20 |
1973, Dec 28 Songbirds 1973 issue
| - | 5ch | multi | Acrocephalus bistrigiceps | |||
| - | 10ch | multi | Sturnus sturninus | |||
| - | 10ch | multi | Sturnus cineraceus |
1977, Jun 28 Day of Postal Services and Telecommunications 1977 issue p. 13.5
| - | 2ch | multi | .20 | |||
| - | 10ch | multi | .20 | |||
| - | 30ch | multi | ||||
| - | 40ch | multi |
1980, Jan 28 30th Anniversary of International Day of the Child issue p. 12 (8 stamps)
| - | 10ch | multi | .20 | |||
| - | 10ch | multi | ||||
| - | 10ch | multi | .20 | |||
| - | 10ch | multi | .20 | |||
| - | 10ch | multi | ||||
| - | 10ch | multi | .20 | |||
| - | 10ch | multi | .20 | |||
| - | 50ch | multi | — | — |
1980, Dec 28 World Chess Championship issue p. 13.25
| - | 20ch | multi | Fischer-Spassky | |||
| - | 1w | multi | Korchnoi-Karpov | — | — |
1981, Feb 28 World Cup 1982 in 1981 c issue p. 13.5 (6 stamps)
| - | 10ch | multi | ||||
| - | 15ch | multi | ||||
| - | 20ch | multi | Dribbling | |||
| - | 25ch | multi | Tackling | |||
| - | 30ch | multi | Pass | |||
| - | 70ch | multi | Sliding tackle |
1981, Apr 28 Naposta '81 issue
| - | 10ch | multi | Flying Boat Dornier Do X | |||
| - | 20ch | multi | LZ 120 Bodensee, Graf Zeppelin | |||
| - | 30ch | multi | ||||
| - | 70ch | multi | Mercedes-Benz W 196 of 1954, p. 12 | — | — |
1982, Apr 28 Essen 1982 issue (no perf info)
| - | 30ch | multi |
1986, Aug 28 Stockholmia '86 issue p. 11.5
| - | 10ch | multi | .20 | |||
| - | 80ch | multi | — | — |
1 to 50 of 144