My definition of Greetings/Gift cards are that they come with an envelope. Not to be confused with plastic gift cards with money on them.
See seperate blogs for postcards and art cards/posters.
Athena
Jimmy Cauty
1977
Hobbit House Note Cards
Hobbit House
14 cards (7 designs) and envelopes
Hobbit (Bakshi)
Bilbo and the Dwarfs, Birthday Party
George Allen & Unwin
Sets of 8 cards with matching envelopes in plastic sleeve was produced from 1975 by George Allen & Unwin publishers from original artwork by Tolkien. 7¾" - 9¾" tall.
Original Series
#1 - The Hill: Hobbiton - across - the Water; #2 - Bilbo wakes with the early sun in his eyes; #3 - Bilbo comes to the Huts of the Raft-elves; #4 - Rivendell; #5 - Conversation with Smaug; #6 - Death of Smaug; #7 - Fangorn Forest; #8 - Barad-dur.
Hobbit Series 1
#1 - The Hill: Hobbiton - across - the Water; #2 - The Hall at Bag-End; #3 - Rivendell; #4 - The Trolls; #5 - Beorn's Hall; #6 - The Misty Mountains; #7 - The Elvenking's gate; #8 - The Green Dragon.
Hobbit Series 2
#1 - Bilbo Comes to the Huts of the Raft-Elves; #2 - Lake Town; #3 - The Front Gate; #4 - The Mountain-Path; #5 - Conversation with Smaug; #6 - Death of Smaug; #7 - There and Back Again; #8 - Bilbo Woke with the Early Sun in his eye.
Lord of the Rings
#1 - Old Man Willow; #2 - Moria Gate; #3 - The Forest of Lothlorien in Spring; #4 - Dunharrow; #5 - Barad - dur; #6 - Map of Middle-Earth; #7 - Minas Tirith; #8 - Helm's Deep.
Hobbit Boxed Set
2000 collectors, with book and map
Tolkien Society
1981
Illustrations by Kay Woollard (known for her work on other Tolkien works such as the Amon Hen Bulletin and Tolkien Calendars).
Bodleian Library
Christmas Card Packs
2019
10 cards in each
Single Cards
Ted Nasmith
Silmarillion
Ruth Lacon
Tolkien
12 cards and envelopes
Farmer Giles
4 cards and envelopes
Roverandom
8 cards and envelopes
Ted Nasmith
12 cards with envelopes
Boxed Sets
Fellowship Movie
Two Towers Movie
Bookmark Cards
Fellowship
Two Towers
Large
Character Standup
Badge
Fellowship
Return of the King
Fellowship General
Two Towers General
Return of the King General
Valentine's Cards
Two Towers
Return of the King
Hobbit