This is a very large scarab for Amenhotep III. with an interesting inscription.
The scarab is inscribed: Neb-Maat-Re (cartouche), who loves the Nile flooding.
For similar ones, see:
Petrie, William Matthew Flinders. Scarabs and Cylinders with Names. Pl. XXXI - XXXIII,
Date: New Kingdom, 18th Dynasty, circa 1390-1352 B.C.
Size: ca. 3,8 cm; c. 1.50 inches
Provenance: Estate of J.G., bought 1973 in Cairo; name will given to the new owner
The authenticity of the item is unconditionally guaranteed.
This item is accompanied with an illustrated Certificate of Authenticity.