Brand: X - Unknown
Made in: Japan
There were countless smaller Japanese brands pre-WWII and I imagine some remained afterward. Not sure where this one lands.
I call these “Quazi” brands because I’m not 100% certain which company actually made them. Sometimes the pencils are stamped with a stationery store or maybe even the name of someone famous. But my hunch is they were produced by another company. If you have more information about any of these vintage pencils I would love to know!