WW2 Royal Australian Navy divers knife & scabbard by Siebe Gorman & Co

WW2 Royal Australian Navy divers knife & scabbard by Siebe Gorman & Co. Royal Navy pattern knife, with screw nut brass pommel, with large ribbed upper/turned lower Bakelite grip, with brass washer and guard. 19.8 cm long double edged blade, with some small areas of uneven surface to sharpened edge, but generally very good overall. Brass ‘bell’ shaped scabbard, with leather strap fixing slot. Vendor states R.A.N. veteran sourced. Scarce