Lillingtons , at the time were on the end of sandpits, so the street behind would be the junction of Summer Hill St an Summer Hill Road . The picture must have been taken between 1938 (or perhaps 1937 and 1949. The 1937 Kellys shows Lillingtons as being just nos 112, 113. with standard sheet metal and pyramid metal Co (as on upper wall in photo) at nos 110. In 1938 Lillingtons were 110-114, but the two metal companies were still listed as 110. By 1939 the two metal companies were lot listed, but their names could still have been on the wall. By 1949 Lillingtons aere still 110-114, but also at 110 was the Stanley Light company, metal spinners. If they were there I am sure they would have painted ovwe the old sign. If i had to make a closer guess I'd guess 1937-1938 as there appears to be a sign on the buildings on the left , which may say "We have moved" (not quite clear), directing people to the right. This building on the left is presumably 112-113,, the old entrance of the firm, at the time of the photo probably just a storage area.