I found this:
Quote:
FRÄNKEL, Judge Heinrich
His name is often given in print as Fraenkel with the umlaut on the ä being anglicised to an ae, so that both spellings should be tried in directories &c.
Fränkel was the librarian of the Berliner Philatelisten-Klub but was also a bibliophile in his own right, having begun his library in 1884 with the intention of collecting everything published which related to philately. His purchase of the library of Sigmund Friedl in 1896, which dated from the early days of philately and contained many rare early publications, made Fränkel's library one of the best in existence in the world. The strength of his library was in Continental literature, notably in German-language works, but it included a number of very rare British and American publications. In addition to philatelic publications, the library also contained many works on postal history and a collection of articles on stamp collecting, culled from non-philatelic publications.
After Fränkel's death on 20th September 1907 at the early age of fifty-four, the library was purchased by the Earl of Crawford, primarily for the rare Continental material and more recent publications that were missing from the Tiffany library. When it was sent over to the UK, it filled thirty-nine large packing cases, the exact number that the Tiffany library had occupied, although the latter contained many duplicates. Once the Earl had removed the relatively few items he wanted, the remainder of the Judge's library was given to the Royal Philatelic Society London, arranged through the good offices of Edward D. Bacon, and formed the basis of their library. A portion of the duplicates from this library were sold by the Society to H. Cooke & Company.
Bacon (1)
Birch (5.4)
Bosshard (1)
Bosshard (2)
Crane (1)
Creeke (1)
Maassen (1)
Maassen (2)
Ton (1)
Stanley Gibbons Monthly Journal, November 1907, Volume 18, Issue 5, p.? The Philatelic Record, May 1908, Volume 30, Issue 5, p.99.
The Stamp Collectors' Fortnightly, 16th May 1908, Volume 14, p.51.
Stamps, 6th October 1934, Volume 9, Issue 1, p.13.
Ronald Negus: The Earl of Crawford K.T. A Short Biographical Sketch., Royal 1064
1888- 1895-1931 1947-2007
1853-1907 Philatelic Society London, UK, 2002, pp.10-11.
http://www.globalphilateliclibrary....sDealers.pdf