i have a beniamino gigli 78 on hmv D.B.1902, is it worth anything?

on side a i think it has MAMMA, QUEL VINO E GENEROSO (ADDIO ALLA
MADRE) and on the other side it has SANTA lucia, it is in roewn cover
and in very good condition, any one have a CLUE AT WHAT IT COULD BE
WORTH.