TWO ITALIAN BOWL BACK MANDOLINS, EARLY 20TH CENTURY, one with interior label for Carlo Ricordo, No. 101, with faux tortoiseshell scratchplate and mother of pearl banding to the sound hole and spruce table, with case, the other with interior label for Sistema de Meglio, Napoli, with a faux tortoiseshell scratchplate with mother of pearl floral decoration, with case (2)