Carl Reichenbach Autograph Rock & Pop with uniform toning and mild

with uniform toning and mild signs of wear to the edges - in nearly fine condition

written and signed in dark ink "Romain Rolland"

IP signed photograph

and Yvonne King in blue ink

with intersecting folds

Carl Reichenbach Autograph Rock & Pop with uniform toning and mildAutograph letter signed, 1 1 2 pages (both sides), 9 x 11 inch, 10. 09. 1860, in German, to Carl Reichenbach requires an instrument for measuring voltage (probably the galvanometer) from German physicist Johann Christian Poggendorff (1796 1877), written and signed in black ink "Reichenbach", with creasing along the left edge, intersecting letter folds, and one tear (0,5 inch) at each vertical edge in fine condition. "Hochwohlgeborner Herr