Brand: Schwan Bleistift Fabrik
Made in: Germany
The Schwan company was founded as Grossberger & Kurz Bleistiftfabrik (pencil company) in Nuremberg in 1855 and acquired by the Schwanhäusser family in 1865. Taking the first part from the family name, the company was renamed Schwan Bleistiftfabrik and started using the swan logo as one of the earliest trademarks.
Many of the larger and well known European pencil companies opened up a franchise in the USA. For example, The House of Faber: A.W., Eberhard, & Johann. It appears that Schwan did the same, using the American spelling of Swan on its pencils manufactured in the U.S. as well as some made in Germany.