From http://hum.amu.edu.pl/~rafalp/HERM/dmanus.html:
A magical work of Dee which is not strictly Enochian in nature is the Tuba Veneris. The Warburg Institute in London has a copy of it at FBH 510. The work is an invocation to Venus.
An edition in german has been prepared by a Dr Joerg M.Meier. There ar e two entries in the German books in print:
Dee, John, Das Buchlein der der Venus (Libellus Veneris Nigro Sacer). Eine magische Handschrift des 16 Jahrhunderts. Hrsg. Komment Uubers v. Meier, Jorg, 1990. ISBN 3-926216-84-0
Dee, John, Das Venus buchlein zur Beschworung boser Geister auf eine gottseliget weise. Bearb. u. krbec Horst, Ubers v. Leopold. F. 1991 160p. 12 Abb 30x21cm ISBN 3-929312-11-5