Ceramic knife-holders as books

Item

Title
Ceramic knife-holders as books
Description
1980? Ceramic knife-holders as books. GA and LM. Green with gold highlights. 3" x 1". €18 from mathilde9662, Jan, '22. Two duplicates and four other members of the series -- LM, WL, TH, and FC -- found earlier from an unknown source.

There is an extra of LM and an unhighlighted extra of GA. The highlights accent parts of the picture and the capital letters in the title. I have searched the web for further members of this set, with no luck yet. Might these be less good than knife-rests with a level center?
Source
€18 from mathilde9662, Jan, '22. Two duplicates and four other members of the series -- LM, WL, TH, and FC -- found earlier from an unknown source.
Date
1980?
Subject
The Lion and the Mouse
The Grasshopper and the Ant
The Fox and the Crow
The Fox and the Grapes
The Tortoise and the Hare
The Wolf and the Lamb
Tableware
Knife Rests
Ceramic Knife Rests