Antique Swivel Catch Sash Window Lock in Cast iron Patent 1877 Complete 641-099

Antique decorative Victorian cast iron swing arm sash or window lock, complete in good working condition,.  Lock base measures 2 5/8" wide x 1  1/4" deep.  Keeper is 2  3/8" x 5/8".  Patent dated on the bottom  "PT. Nov. 12  '77".  An early lock of this type.  Works well with acceptable wear.  No damage. 

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