- Aresinoussecretionofthelacinsectdepositedontreesandusedinmakingshellac.Yourrifle'sfinishislowgradeshellac,cosmolineandOlga'stoenails.AnotherinnovationcamewhenBakelitewaspatentedasareplacementforshellacingrindingwheels.Shewantedtoshellacthedesktopro...
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