(click on pictures to enlarge)
|This is a high-quality piece with nickel-plated trim. The unique feature of these is the cap, the top of which is angled. Since you turn the cap to advance the lead, it looks a little funny. In this picture, I've turned the cap with the low side facing forward.|
Here's a close up of the imprint. I've searched the patent databases looking for the U.S. Colorgraph Corp. as an assignee, but I haven't had any luck finding anything.
I've seen a handful of these over the years. All are in the black and pearl color shown, and all have been in working order.