Muumin to Koutsuu Anzen

The current MAL image comes from the music single's vinyl record release, which labels itself as song content from the "Koutsuu Anzen" OVA. The single's image uses the art style of the 1972 season of Muumin. The production date of the OVA is unknown but it is known that it was available for purchase in 1979 at the latest.