Clue: Abbr. on a cornerstone

Answer: 3 possible answers to Abbr. on a cornerstone. From 3 to 5 leters.

Abbr. on a cornerstone answers with 3 characters:

• EST

Abbr. on a cornerstone answers with 4 characters:

• ESTD

Abbr. on a cornerstone answers with 5 characters:

• ESTAB

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