From editor Christopher Gilson:

Parma Eldalamberon No. 22, “The Feanorian Alphabet, Part 1” and “Quenya Verb Structure” by J. R. R. Tolkien, is now available again from:

Barnes and Noble:
https://www.barnesandnoble.com/w/parma ... -j-r-r-tolkien/1146440769
(All available issues: https://www.barnesandnoble.com/s/parma%20eldalamberon)

The Great British Bookshop:
https://www.thegreatbritishbookshop.co ... t-1-quenya-verb-structure
(All available issues: https://www.thegreatbritishbookshop.co ... ast&q=parma+eldalamberon)