Unidentified Stamp

Unidentified Stamp
Dimensions (height x width): 11mm x 12mm
Monogram: M L
Initial: M L
Coronet: Viscount
Notes:
This is not Henry Yelverton Viscount Longueville or his wife, nor is it Lowther Viscount Lonsdale or his wife. The stamp is made up of separate pieces. Lumley?