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Nomenclature

support jewel «PA»

flat olive jewel «GO»

domed jewel «B»

domed olive jewel «BO»

flat jewel with two recesses «G2C»

flat olive jewel with two recesses «G2CO»

semi-flat jewel «MG»

semi-flat olive jewel «MGO»

domed semi-flat jewel «MGB»

domed olive semi-flat jewel «MGBO»

flat jewel «G»

olive support jewel «PAO»

domed olive support jewel «PABO»

support jewel with polished ribbon «PARP»

domed support jewel with polished ribbon «PABRP»

support jewel domed on both sides with polished ribbon «PAB2XRP»

support jewel domed on both sides «PAB2X»

endstone «CP»

domed endstone «CPB»

endstone domed on both sides «CP2B»

domed endstone with off-centre recess «CPBCD»

endstone
recess + domed «CPCB»

pin «GOU»

flat jewel with cone-shaped recess «GC»