Anthology of the RCO -- Beethoven symphonies

Looking through the 7 volumes of the Anthology of the RCO, I found that a complete cycle of the Beethoven symphonies is almost present. Only the Second is not represented in this series. 

The 8 symphonies included are listed as follows:

Sym 1: Wilhelm Furtwängler, 13/7/1950 (Vol 1, CD12)

Sym 3: Nikolaus Harnoncourt, 16/10/1988 (Vol 5, CD12)

Sym 4: Willem van Otterloo, 19/3/1972 (Vol 4, CD4)

Sym 5: Erich Kleiber, 28/4/1950 (Vol 1, CD12)

Sym 6: Wolfgang Sawallisch, 10/3/1991 (Vol 6, CD3)

Sym 7: Josef Krips, 24/5/1952 (Vol 2, CD4)

Sym 8: Pierre Monteux, 14/5/1962 (Vol 3, CD1)

Sym 9: Mariss Jansons, 25/12/2006 (Vol 7, CD9)

From the earliest recording in 1950 till the last in 2006, this "cycle" spans more than half a century. Only the arguably least popular Beethoven symphony, the Second, is not included. It also features a formidable list of conductors, from the giants in Europe in the 1950's to the orchestra's present Chief Conductor. Many of these recordings are important not only in their historical significance, but also in their artistic value.