of Pedigree Works, Birmingham
1921 Cumberland Pencils was acquired
After World War II, staff from the London Jewel Co joined them and they began to produce ball point pens.
1975 As part of the Twinlock group its name was changed to Cumberland Graphics
1982 Byron Head, the Managing Director of William Mitchell (sinkers) and British Pens bought the two companies from Twinlock.
The company still makes pens in the West Midlands.
Sources of Information
-  The Pen Museum.