Each month, Richard's Pens puts a tray of vintage and restored pens online. They go really quickly - usually within a few minutes of the initial posting - but this Eversharp Skyline Demi sat around for a day and a half. I was going to be good, but then ... well, my evil "you need this" side came through.
It probably didn't catch too many eyes because engraved pens aren't all that popular with collectors. This one commemorates the Freemason Logan Lodge in Altoona, Pennsylvania, which according to Richard Binder is still active. The engraving reads, Logan Lodge #490 - F. and A.M. - 1871 May 1st 1946. I have no idea why that date was important, but this is a really neat lever-fill pen, and it writes very nicely.
The Eversharp company is long gone, but the name has been revived on a series of pens that looks close to the original.
Updated - I contacted the Freemasons, who told me that the date was the lodge's 175th anniversary. I was also told that the Masons love anniversaries and collect items commemorating them, so this would have been made up for that.)