The "Ettingshall Brewery" is shown on this 1913 Ordnance Survey map, but is not shown on the 1901 or 1938 editions. Could this be Mears & Co's brewery? Reproduced with the permission of the National Library of Scotland (
http://maps.nls.uk/index.html)
Mears Lloyd & Co, Home Ale Brewery, Ettingshall Road, Ettingshall, Wolverhampton, West Midlands
William B Mears. Mears Lloyd & Co in 1904.
Mears & Co in 1912.