Star Trek IV: The Voyage Home Spanish-Language Poster (Year Unknown)

Star Trek IV: The Voyage Home Spanish-language theatrical release one-sheet poster. Tagline: "Para salvar nuestro mundo era necesario pedir ayuda a los hombres del siglo 23. Alli empiezaba* la aventura de todos los tiempos." (Automatic translation: "To save our world it was necessary to ask for help from the men of the 23rd century. There the adventure of all times began." Title translation: "MISSION: SAVE THE EARTH.")

*Note this is slightly different than the tagline on the Argentinean one sheet.

Size: 26" x 37"
Artist/Illustrator: Gareth
Designer: Unknown
Release Year: 1987
Region: Unknown
Notes: 

• Unsure of country of origin. According to IMDb, Star Trek IV was released with similar Spanish titles in Argentina (Viaje a las estrellas IV: Misión: Salvar la tierra), Mexico (Viaje a las estrellas IV - Misión: Salvar la Tierra), Peru (Misión: Salvar la Tierra), Spain (Star Trek IV: Misión, salvar la Tierra), and with an alternate title in Spain (Misión: Salvar la Tierra).
• Image source gives the size of this poster as 26" x 37"; this is not a standard poster size I'm aware of.
• Need more info on artist "Gareth."
• This artwork was also used for the international one sheet, the German A1, the Italian 2-Fogli, and the Australian daybill.