They seem to be Ercole Moretti of the type "Molate Trasparenti" on a sample card from 1930 to 1935 manufacture. Joyce had posted a green necklace of same series and age on 4/12/2015. See G. Moretti "Ercole Moretti - Un secolo di veneziane", Arcari Editore, Venezia 2009 - pages 98-101, pictures 108, 109, 112.