1970 - Centura Livingware Cups (round-bottom)

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

This style was produced from 1970, through to the end of 1973.  These cups suffer a bit of an identity problem, and generally they are called ‘Livingware’ because the only thing that really sets them apart is that every one of them has the Livingware brand on them.  These cups are in fact made of Centura, but not marked as such.  They are not microwave-safe, but have no warnings stamped on them.   

The cups are characterized by the black ink backstamp which reads ‘Corelle Livingware by Corning…Made in USA’.  Also 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 the Pyrex cups are very translucent and have completely different backstamps. 

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

About the Livingware brand:  Many, many pieces of genuine Corelle made of Vitrelle also carry the Livingware brand name.  The above description of the Centura Livingware 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.

The Livingware Centura cup, left, is very opaque in comparison with the translucent Pyrex cup, right.  The Pyrex cup is thicker as well.

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