Octave de Rochebrune (1824-1900) Château de Blois, main staircase. 1868; Staircase at Chambord. 1872. Etching. 475x620 and 395x625mm. Very fine proofs on laid paper, before the letter. Some light foxing and minor accidents or tears to the edges of the leaves. Full margins. Artist's stamp (Lugt 2238). Joint: Lantern of the Château de Chambord, built in 1533, by Pierre Nepveu, known as Trinqueau. 1864. Etching. 375x455mm. Very fine proof on laid paper. Full margins. Ens. 3 p.