[Sir Clements Markham, explorer in Peru, Secretary to the Royal Geographical Society.] Autograph Signature ('Clements Markham') on part of letter.

On 3.5 x 9.5 cm slip of paper cut from letter. In fair condition, lightly aged and worn. On one side, from the conclusion of the letter: 'Yours very truly | Clements Markham'. On the other: '[...] have failed me: so no[...] | [...] you mind my putting [...]'.