Fifth group (last for the time being): Pic 1 The scrapped black sheep piezo's ceramic and cone elements pulled out. Pic 2 Ceramic element has 21 mm diameter, also confirmed with measuring tape VS CTS/GRS 22 mm mentioned previously. Close. Pic 3 View of copy's cone attached (glued?) to ceramic piezo element. Btw cone diameter measured at 40 mm (or 1.5+ inch).
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