Two early 20th century Yellow Helmet (Horned Helmet) shells.
The shells (Latin name: Cassis Cornuta) originally came from the Pacific Ocean though they are also found in the Indian Ocean.
Shells larger than 28cm (11 inches) are hard to find and these two are over that size.
The shells are in good condition but do have some chips to the edges. (Circa 1900 - 1950)
Height 22cm (8.7 inches)
Length 30cm (11.8 inches)
Width 20cm (7.9 inches)