Here is the final installment of the batch of Danish stamps on my envelope!

1983 The 200th Anniversary of the Birth of Poet N.F.S. Grundtvig
Issued Nov. 3, 1983
Perf. 12¾ | Design: Jane Muus | Issued in sheets of 50 | Engraving: Czeslaw Slania | No watermark
747 A232 2.5Kr Brown red | N.F.S. Grundtvig, Poet
1987 The 100th Anniversary of the Danish Cooperative Bacon Factories
Issued Jun. 18, 1987
Perf. 12¾ | Design: Bente Olesen Nystrom | Issued in sheets of 50 | Engraving: Arne Kühlmann | No watermark
841 A289 3.80Kr Multicolored | Domesticated pigs (Sus scrofa domesticus)
1992 EUROPA Stamps – The 500th Anniversary of the Discovery of America
Issued May 7, 1992
Perf. 12¾ | Design: Niels Winkel | Issued in sheets of 50 | Litho. & Engr. | Engraving: Martin Mörch | No watermark
959 A342 3.50Kr Brown & green | Potato plant* (Solanum tuberosum)
*I’m not 100% sure why the potato is significant to this anniversary. The first permanent potato patches on US soil were established in 1719 near Londonderry, New Hampshire by Scotch-Irish immigrants.
1989 Nordic Cooperation Issue
Issued Apr. 20, 1989
Perf. 12¾ | Design: Birgit Forchhammer | Issued in sheets of 50 | Litho. & Engr. | Engraving: Arne Kühlmann | No Watermark
868 A312 3.20Kr Multicolored | Woman from Valby
1984 “Plant a Tree” Campaign
Issued Jan. 26, 1984
Perf. 12¾ | Design: Tage Stentoft | Issued in sheets of 50 | Litho. & Engr.|Engraving: Arne Kühlmann | No Watermark
749 A234 2.70Kr Red & green | Shovel and sapling
1982 The 500th Anniversary of the University Library
Issued Nov. 4, 1982
Perf. 12¾ | Design: Lisbeth Gasparski | Issued in sheets of 50 |Engraving: Arne Kühlmann | No Watermark
731 A221 2.70Kr Multicolored | Library Seal
[Sources: stampworld.com, Scott 2012 Standard Postage Stamp Catalogue, Vol. 2]

1986 The 400th Anniversary of the Foundation of the Sorø Academy
Issued Apr. 28, 1986
Perf. 12¾ | Design: Birgit Forchammer | Issued in sheets of 50 | Litho. & Engr. |Engraving: Czeslaw Slania | No Watermark
816 A269 2.80Kr Multicolored | Sorø Academy and Heraldry
1981 EUROPA Stamps – Folklore
Issued May 4, 1981
Perf. 12¾ | Design: Palle Pio | Issued in sheets of 50 | Litho. & Engr. |Engraving: Czeslaw Slania | No Watermark
680 A208 1.60Kr Brown red | Tilting at a Barrel on Shrovetide
1985 The 300th Anniversary of the German and French Reform Church in Denmark
Issued Jan. 24, 1985
Perf. 12¾ | Design: Mads Stage | Issued in sheets of 50 | Litho. & Engr. |Engraving: Czeslaw Slania | No Watermark
769 A249 2.80Kr Magenta | Reformed Church (Reformert Kirke) in Copenhagen
1982 EUROPA Stamps – Historic Events
Issued May 3, 1982
Perf. 12¾ | Design: Jane Muus | Issued in sheets of 50 |Engraving: Czeslaw Slania | No Watermark
723 A215 2.00Kr Magenta | Abolition of Adcsription*
*Adscription means the state of being added, bound, or annexed.
[Sources: stampworld.com, Scott 2012 Standard Postage Stamp Catalogue, Vol. 2]