Sorry Brady feeling a bit cheeky.
Un lanciabombe pneumatico da 432/302mm per b.t.g. da 100 e 50 kg delle quali due, in primo piano, sistemate in cestelli per il pronto impiego. (Coll. A. Rastelli).
Cacciatorpediniere
Classi
"Freccia/Folgore"
"Maestrale"
"Oriani"
Parte prima
E. Bagnasco - M. Brescia
Ermanno Albertelli Editore
Depth Charges
In the Italian Navy depth charges were called B.T.G.(=Bombe Torpedini de Getto): there were three main types.
BTG Monc. 50/1917
BTG Monc. 100/1927 4 Reg.
BTG Monc. 50/1927 4 Reg.
All built by Moncenisio Workshops with 50 kg. (from 1917) or 100 kg (after 1927) explosive charge. 4 Reg. means 4 Regolazioni viz. the facility to adjust the depth of the explosiion at 25, 50, 75 or 100 metres.
Italian Warships of World War II
by Aldo Fraccaroli
I know the name might throw people off but the author is very respected in this field of study.