Rare C. F. Monroe Gilt-Brass-Mounted Wave Crest Opal Glass Box, fourth quarter 19th century, h. 3-1/2", w. 5-1/2". For a box of similar form, see W. R. Cohen, Wave Crest, The Glass of C. F. Monroe, Collector Books, 1987, p. 49, upper photograph, and p. 5 Rare C. F. Monroe Gilt-Brass-Mounted Wave Crest Opal Glass Box, fourth quarter 19th century, h. 3-1/2", w. 5-1/2". For a box of similar form, see W. R. Cohen, Wave Crest, The Glass of C. F. Monroe, Collector Books, 1987, p. 49, upper photograph, and p. 5