1970 - Centura Cups (round-bottom)

(8 oz)  Available Patterns:  Butterfly Gold, Snowflake Blue, Winter Frost White, Spring Blossom Green.

This type was produced from 1970 through to the end of 1973.  These cups carry the Corelle Livingware brand, but they are not made of Corelle at all.  They are actually made of Centura glass-ceramic, and are not microwave-safe, although no warnings about this kind of use appear on the backstamp.

The cups have a black ink backstamp which reads ‘Corelle Livingware by Corning ... Made in USA’.  An obvious characteristic setting these cups apart from Corelle is that they are very densely opaque; light does not shine through them at all.  They share the same shape as the Pyrex cups introduced a decade later, but Pyrex cups are very translucent and have completely different markings. 

Many, many pieces of genuine Corelle made of Vitrelle also carry the Corelle Livingware brand name.  This description of Centura cups does not mean that every piece marked 'Corelle Livingware' in black ink is unsuitable for the microwave.  This concern is only applicable to this particular style of closed-handle cup.

Although the backstamp does not mention it, this shape does have a model number: 318.

Related Articles:

Corelle Livingware (1970)
What are glass-ceramics?
What is Centura?
Compare Centura & Pyrex Cups

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