These 1930s era black and pearl mechanical pencils are in very good to excellent condition overall. There is a pencil by Biltwell, one by Reservoir, and one by Challenger. They are all in working condition. They all have personal engravings as shown. The one with the loop clip on the end that says "Sylvia" was made by Standard Pencil Company as engraved on the barrel. It says, "Diamond Medal Standard Pencil," which is hard to read. That same pencil, the "Sylvia" pencil, has a three-quarter inch scuff mark on the barrel which I've attempted to show in the last photo.