One of the early Eagle's pictured on page 45 of The Catalogue is the No. 831 "Spear," a short, simple pencil that comes in black enamel over brass. Since the book was published, I've run across a couple other variations:
The top one I was really excited to find, since it is the only one I've seen that has a patent date on it, instead of the typical "Eagle Pencil Co. New York":
Yes, I know that the highlighting isn't very good. Remember that there's not a real imprint on these, just a very light stamp in the enamel paint.
A few weeks ago I posted an article about Eagle's "banner year" of 1909, when the company received two patents on the venerable "Torpedo" series of pencils. Unfortunately, the patents turned out to be a letdown, with one being for a rather bland design and the other being for a simple spring floor in the spare lead compartment.
The Spear shares many of the same mechanical features as the Torpedo, and here's a patent date from a year earlier -- could this be the real patent for the workings behind these pencils?
Sadly, no. And if the Torpedo patents were a letdown, the Spear patents are a real snoozer. Yes, there's two of them, both issued on September 22, 1908: