This is a nice example of the ever-popular Imperial Fountain Pen made by Sheaffer. It dates from around 1975 and was made in the USA.
The barrel and section are black, the cap is made from Brushed Stainless Steel. The pen is fitted with an inlaid nib which writes very smoothly. The pen uses standard Sheaffer Cartridges or a converter can be fitted to enable it to use bottled ink. The condition is very good with only very light wear marks.