ECMA B20.01.00.50.12 Unglued Self-Locking with Two Double Walls - Locking Flaps with Fold-Over Nib Locks - Two-Sided Score Tear Strip
ECMA B20.01.00.50.12 Unglued Self-Locking with Two Double Walls - Locking Flaps with Fold-Over Nib Locks - Two-Sided Score Tear Strip