New and Improved

Sometime in the last 100 years, since this miter box was made by Diston,I would guess they made and released a New and Improved version of this classic.
BUT how can it be improved if it is NEW ? Look up the definition of new. Ok I looked it up for you:

• not of long duration; having just (or relatively recently) come into being or been made or acquired or discovered; "a new law"; "new cars"; "a new ...

• fresh: original and of a kind not seen before

Thus, if a manufacture says it's new and improved, watch what you are stepping in.