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postage
1968, Mar 4 1968a unwmk issue - wildlife (1968 Guyana) unwmk (no perf info)
| X | 20c | multi | canje pheasant |
1969, Mar 25 1968b wmk issue - wildlife (1968 Guyana) wmk. lotus bud mult
| X | 20c | multi | Opisthocomus hoatzin | — | — |
1971 flowers (1971 Guyana)
| X | 20c | Paphinia cristata |
1971, Nov 15 Christmas 1971 issue
| X | 20c | .20 | .20 |
1972, Feb 23 Republic Day 1972 issue
| X | 20c | multi | dollar coin |
1978, Oct 1 1978 issue - butterflies (1978 Guyana) unwmk
| X | 20c | multi | Helicopis cupido | .20 | .20 |
1981, Jun 8 Essequibo is Ours issue ovpted (no wmk info)
| - | 20c | on 1c (7) |
1981, Jun 8 Essequibo is Ours b issue ovpted
| - | 20c | on 1c (7) | .20 | .20 |
1982, Feb 8 1982 surcharges a issue wmk. lotus bud mult
| - | 20c | multi | ||||
| - | 20c | multi | ++on=6c | |||
| - | 20c | multi | ++on=6c |
1982, Mar 15 1982 surcharges e issue ovpted (no wmk info)
| - | 20c | on 35c (41) | .20 |
1982, May 17 1982 surcharges i issue unwmk
| - | 20c | blk & ltgrn | ++on=2c |
1982, Dec 15 1982 surcharges n issue wmk. lotus bud mult
| - | 20c | multi | ++on=6c | .20 |
1983, Mar 14 1983 surcharges d issue ovpted (no wmk info)
| - | 20c | on 10c (24) | .20 |
1983, May 2 1983 surcharges e issue ovpted
| - | 20c | on 6c (24) | .20 |
1983, May 18 1983 surcharges f issue wmk. lotus bud mult
| - | 20c | multi | ++on=6c | .20 |
1983, Sep 5 20th Anniversary of Guyana Airways issue (6 stamps)
| - | 20c | multi | ||||
| - | 20c | multi | ||||
| - | 20c | multi | ||||
| - | 20c | multi | ||||
| - | 20c | multi | ||||
| - | 20c | multi |
1983, Dec 14 Christmas 1983 issue
| - | 20c | multi | .20 |
1984, Mar 5 Nature Protection 1984 issue
| - | 20c | multi | ++on=15c | |||
| - | 20c | multi | ++on=15c | .20 | ||
| - | 20c | multi | ++on=15c |
1984, May 2 1984 surcharges e issue
| - | 20c | multi | ++on=15c |
1984, Sep 6 1984 surcharges k issue ovpted (no wmk info)
| - | 20c | on 15c (60) | .20 | |||
| - | 20c | on 15c (60) | .20 | |||
| - | 20c | on 15c (60) | .20 |
1985, May 21 1985 surcharges d issue wmk. lotus bud mult
| - | 20c | multi | ++on=12c-Perf: 14 - WM:3 | .20 | ||
| - | 20c | multi | ++on=12c |
1985, Dec 23 1985 surcharges g issue unwmk
| - | 20c | multi | .20 | |||
| - | 20c | multi | .20 |
1986, Jul 28 wmk. lotus bud mult
| - | 20c | multi | ++on=6c |
1986, Nov 26 Christmas 1986 issue ovpted (no wmk info)
| - | 20c | on 6c (24) | .20 |
1987, Nov 9 Christmas 1987 issue wmk. lotus bud mult
| - | 20c | multi | ++on=6c-No. 103 | .20 |
1988, Nov 16 Christmas 1988 c issue ovpted (no wmk info)
| - | 20c | on 6c (24) | .20 | .20 |
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