Thanks to Juliet Warner of Pobjoy Stamps for information about this issue.
There is also an ‘Elf on the shelf’ stamp sold in Booklets Of 10.
Regrettably I do not find this to be a particularly appealing set. Rating:- **.
🇱🇰 Sri Lanka Post issued a single stamp on 6 October 2019 to commemorate the International Year Of Indigenous Languages. The design features the colourful logo for the year; a number of other postal administrations, including Australia Post, have issued similar stamps. Rating:- ***.