 In 1910 he added a line of window glass and in 1912 began dealing in plate glass.By 1918 his trade in glass had reached such proportions that he was obliged to build a special warehouse to accommodate the stock and in 1920 he erected a brick factory building on Thirty fourth street, across the alley from the rear of his store.There he began manufacturing his own paint, and the growth of his business led to the addition of other units to his plant, and in 1925 to the glass warehouse on Thirty-Second Street.