The Redruth Brewery Co. was taken over by J.A. Devenish of Weymouth in 1934 and officially the name was changed to Devenish Redruth Brewery Co. Ltd. However, on many of their labels, both the Devenish name and the Redruth Brewery Co., was used. I believe that Green Top was originally brewed at Redruth and after 1934, brewed at both sites. It must have been a popular brew, because it was continued after the 1960 merger with Groves & Sons, which was next door to the Devenish Brewery.