This is a Sheaffer Oriental Mosaic Coral Butterfly pen and pencil set. It dates c1924-1928 based on advertisements and catalog listings. The pen measures 3 13/16 and the pencil 3 1/2 inches long. These appear to be plain gold filled ringtop instruments that are then hand painted. There are four Oriental Mosaic patterns, sterling silver with a blue butterfly design and three gold filled designs, pale blue flower, coral butterfly and yellow daisy. The pens sold for $10.00 and the matching pencil $5.00. Shown is the Penvelope soft Ecrase leather case that were made to match the color of each pen set and were included if the pair was purchased. Note that the enamel is fragile and prone to flaking off, as seen especially on the pencil.