Two clamp-related items for this post: one is familiar, the other less so.
The “BT1” is another iteration of the Eberhard Faber double-clamp eraser. It looks nearly identical to the No. 2095 from a recent post, and both are German-made:
Little of the original erasers remain but like the 2095, one is for graphite and the other is for ink. This leads me to wonder how many different versions there were of this item (I know of at least one more, No. 2097A where one side is a brush), or perhaps, how many different configurations there were (e.g. types of erasers, etc.).
This pencil, though, is a bit of a mystery to me. It’s an early clutch pencil with a wooden body and a clamp eraser. I think it’s from Eberhard Faber, but I’m not sure: the only product number I can discern is “1511”, everything else is worn off.
But just because it has a clamp eraser doesn’t necessarily mean that it is from Eberhard Faber—there were plenty of imitators for a while. Also, this is the only time I’ve seen this kind of ferrule with so much oxidation:
The banding and clip look consistent with Eberhard Faber products, so perhaps then it is an early model (ca. 1921-1925).
Anyone from the leadholder crowd know about this pencil?