Ancient eggcorn?

[Arnold Zwicky]

On Dec 29, 2008, at 4:28 AM, Michael Quinion wrote:

> My son gave me a big collection of old SF magazines for Christmas.
> On the
> back cover of issue No 5 of Nebula Science Fiction for Autumn 1953
> is an
> advert: "A Full-proof Insurance Policy".

now added to the "fullproof" entry in the ecdb.

arnold

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