Sentence:  The best of the joke, too, is, that the very coal-merchant who is loudest in his complaints against the person who defrauded him, is the <WSD>identical</WSD> man who sat in the centre of the very front row of the pit last night and laughed the most boisterously at this very same thing,--and not so well done either. 
Meaning of the word marked with <WSD> tags:  Not different or other; not another or others; not different as regards self; selfsame; numerically identical.