This is a Falcon 1-3/8 inch mortise cylinder with a 6-pin keyway. It is a non-handed cylinder that fits a mortise lock and operates the lock through its cam. Cam styles vary by part number to suit different mortise lock functions. Falcon is an Allegion brand. Part 987 G 09897-000 605 is the Falcon M Non-Deadbolt Functions Cam (A09897-000-00 (4)), 6-Pin G Keyway, Keyed Different, 2 Cut Keys version in Bright Brass.

• Falcon M Non-Deadbolt Functions Cam (A09897-000-00 (4))
• 6-Pin G Keyway
• Keyed Different
• 2 Cut Keys
• Finish 605 Bright Brass
• Part number 987 G 09897-000 605