I have been doing a little research into the Potteries Guild (also the Potteries Cripples Guild of Handicraft) , the forerunner of the Duchess of Sutherland Cripples Guild, and came across a 1904 newspaper reference (November 4th, The Clarion, page 5) “That the best work of the Potteries Guild is undoubtedly that made for the “Frame Food Factory“. Curious, I found that the Frame Food Factory was/is an outstanding building in Southfields SW18, built c 1903, to make baby food, now converted into flats. More details at this link. I have found no pictures of the interior but I assume the sculptural roof finials or spires visible in the images below are by The Potteries Guild.