"having once spotted my man, it was easy to get corroboration. i knew the firm for which this man worked. having taken the printed description. i eliminated everything from it which could be the result of a disguise—the whiskers, the glasses, the voice, and i sent it to the firm, with a request that they would inform me whether it answered to the description of any of their travellers. i had already noticed the peculiarities of the typewriter, and i wrote to the man himself at his business address asking him if he would come here. as i expected, his reply was typewritten and revealed the same trivial but characteristic defects. the same post brought me a letter from westhouse & marbank, of fenchurch street, to say that the description tallied in every respect with that of their employé, james windibank.