Eigenh. Brief mit U.
2 SS. auf Doppelblatt. 8vo.
An den Astronomen Johann Franz Encke: "You will have received [...] Vol. IV Part I of the Annals of this observatory together with the 'Report' for 1862-63. I have now the pleasure, in response to your request made when acknowleding the receipt of Vol III, to send to your address [...] a package containing the following volumes, which I presume from the statements in your letter will complete both your own set of our 'Annals' and also that of the Library of the Observatory of Berlin [...]".
Auf Briefpapier mit gepr. Vignette.