A lathe is used to cut microgrooves into an aluminum disc coated with nitro-cellulose lacquer.
Registrants were issued a numbered aluminum disc to place on their dashboard, but they had to provide their own license plates.
When the technology became available, he supplemented his written record with audio recordings - many recently digitized - first using wax cylinders, then aluminum discs.
An aluminum disc is attached to a leg on each suit that passes the federation's check, to certify its suitability for competition.
The halogen downlights over the countertop are small aluminum discs.
Their innovation was to coat the aluminum disc with a layer of lacquer.
The soft aluminum discs are in the worst shape.
Instead, most are an aluminum disc with a coating of nitrocellulose lacquer.
The rear wheel was a solid aluminum disc.
Between the years 1966-1967, he began painting aluminum discs.