All 3 Uses

veritable
in
The Count of Monte Cristo
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Albert, who was a great smoker, and who had considered it no small sacrifice to be deprived of the cigars of the Cafe de Paris, approached the table, and uttered a cry of joy at perceiving some veritable puros.†
Chpt 35-36

veritable = used for emphasis to introduce a dramatic metaphor
The fetes are veritable pleasure days to the Italians.†
Chpt 35-36 *
He made his way along the corridors through force of habit; he threw aside his magisterial robe, not out of deference to etiquette, but because it was an unbearable burden, a veritable garb of Nessus, insatiate in torture.†
Chpt 111-112

Definitions:

(1) (veritable)
used for emphasis: to describe one thing as almost like another (more intense) thing
(2) (meaning too rare to warrant focus)