(Philadelphia), January 4, (18)48. 1 p. Approximately 6 7/8 x 9 3/8 in. (174 x 238 mm) (sight). Autograph letter, signed by Rembrandt Peale, to William Duane, Esq. :"Dear Sir/In reply to your note of/last week, I have the pleasure to say, that/the statement you desire me to make, on/the subject of steam navigation, shall/be ready for your use before the time/specified./Respectfully/Yours/Rembrandt Peale." Address and postal ink stamp at left; creasing from original folds. Unexamined out of frame (18 1/4 x 14 1/4 in.; 463 x 361 mm), which includes a portrait of Peale.