Around 1946 or 1947 Sheaffer began using injection molded plastics for major components of their pens. The grip section and inner barrel of these pens are a single, injection molded part. The striped, golden brown celluloid outer barrel is a cover or, as Pelikan calls theirs, a binde.
This pen has a nib stamped with a 79. It was a Sheaffer nib size and style designation. The 79 nib has slightly shorter tines and a stubby appearance compared to the nib from the larger pens, like the Valiant. I prefer the shape of the 79 nib. And it's short, wide tines tend to produce points that are quite stubby in shape. They often have a nice, subtle touch of line variation. This nib writes a nice, wet fine line that is probably equivalent to a modern, western extra-fine or a Japanese fine.
I didn't know that Sheaffer was still using silver as their base metal in 1946-7. But a bit of plating loss on the cap lip and clip clearly shows silver beneath. Perhaps brass was yet difficult or expensive to acquire. There are a few dimples in the cap peak though it is not bashed in as they so often are.
The celluloid is without flaw. That is, unless you consider personalization a flaw - I do not. The name E C Newton is stamped above the manufacturer's imprint. The w is very light and difficult to capture in photos. The white dot is on the end of the filler knob. It's fun to track the migration of the white dot location through the various generations of Sheaffer pens. They evidently have difficulty figuring how to place it in the preferred position above the clip on the first generations of metal caps.
Length Capped - 124 mm (4.9”) Uncapped - 106 mm (4.2”) Posted - 138 mm (5.45”). Diameter Cap - 12 mm (0.47”) Barrel - 11.4 mm (0.45”)
Nib Vintage Fine; Modern, Western Extra-Fine or Japanese Fine