Antique Desk seal Stamp Cypher with Horn Handle and Bone Stamp Monogram M S

Antique Desk seal Stamp Cypher with Horn Handle and Bone Stamp Monogram M S
17th or 18th-century desk stamp with a horn handle and a bone stamp features the monogram M.S.
In my opinion, the monogram is M.S.
The stamp is in good condition, with some natural cracks and a slight flake on the handle.( stable)
The size is approximately 2.64 inches x 0.79 inches.
Face stamp: 0.59 inches x 0.51 inches.
Weight: 17.6g (0.039 lb).
The photos are taken in multiple magnifications, small scratches and imperfections you won't see with the naked eye
Photo number two shows the collection of stamps acquired recently