be mistaken

The cheering and not-to-be-mistaken view before him had dissipated all his doubts.

Yet now a never-to-be-mistaken voice comes cooingly from the kitchen.

Sitting low in my saddle, almost dozing, I revived suddenly at a never-to-be-mistaken B-u-u-z-z-z!

It is free from corrections, and is signed, "Charles Dickens," under which is the never-to-be-mistaken flourish.