We report on optical imaging and spectroscopic observations of the Wolf-Ray
et candidate star MLA 1159 and the surrounding ionization nebula BA 1-642 i
n the Andromeda Galaxy. Though both objects have been known for many years,
our observations (1) confirm the Wolf-Rayet nature of MLA 1159, (2) allow
one to determine the nebula as an ionization nebula, and (3) demonstrate th
e association of MLA 1159 with the nebula. The supersoft X-ray source RXJ00
45.5+4206 whose error box encompasses the full nebula, seems to be a chance
superposition and not related to MLA 1159 and/or BA 1-642.