Paiste produces its Symphonic Gongs without Logos (or NO LOGO as they are sometimes called) for gong specialists like Kundalini Yogis or Sound Healers who often face their gong while playing, unlike a drummer. These players may not want the Paiste Name on the front of the gong as they play as they are working to create a space of meditation or spiritual experience.
People often ask how Paiste Gongs are different than Chinese Gongs.
Well, one way is they are made of Nickel Silver. Nickel Silver is a metal alloy of copper with nickel and often, but not always, zinc. It is named for its silvery appearance, but contains no elemental silver unless plated.
Many alloys fall within the general term of "nickel silver". All contain copper and nickel, while some formulations may additionally include zinc, antimony, tin, lead or cadmium. [Example industrial formulation, Alloy No. 752, is 65% copper, 18% nickel, and 17% zinc. Etc.] In metallurgical science, such alloys would be more properly termed nickel brass.