Are these the Rover factory steps?

laine Evans believes that her grandma, Emma Lina Rose, once worked in the canteen at the Rover factory in Coventry, and the overalls worn by these ladies certainly suggest their job. Emma Lina lived in Webster Street before to moving to Oliver Street in the mid 1930s, and can be seen here right at the front of the group of colleagues. The location of her home makes sense, because Oliver Street runs alongside what used to be the Helen Street Rover plant in Stoke Heath at that time, which after the Second World War was sold to the G.E.C., who remained in ownership for the rest of the 20th century.

The question is, though.... was this photograph taken at the Rover factory?