"Harder"=fused at higher temperatures=more durable, more translucent
"Softer"=fused at lower temperatures=more fragile, more opaque
The first true enamel, using molten glass, can be seen on Greek gold jewelry that dates from the 4th century BCE. Since then, enamel has been used throughout history, by cultures all over the world, because of its colorful and lustrous qualities.--guest editor Margaret Morse
Glance regularly at PEDIGREE & PROVENANCE, and soon you'll be able to toss those obscure phrases back at the experts with confidence and agility and be fully prepared to bid on items at BIDDINGTON'S upmarket, online art & antiques auctions.