Komi Sje
Komi Sje is a letter of the Molodtsov alphabet, a version of the Cyrillic alphabet that was used to write the Komi language in the 1920s. It represented the voiceless alveolo-palatal sibilant, somewhat like the pronunciation of in "sheep".
Although it looks like the Latin letter G, it is unrelated and is more related to the Cyrillic letter Es.