Book  (Oct 2001)  Page(s) 126.  Includes photo(s).
 
Clematis 'Belle of Woking'
George Jackman and Son (England) 1875
C. 'Lanuginosa Candida' x C. 'Fortunei'
... fully double flowers... produced on the previous season's old wood and carry many layers of broad yet pointed, silvery mauve tepals, fading to silvery grey, soon after opening... white filaments and cream anthers...

Magazine  (28 Jul 1937)  Page(s) 56.  
 
TWENTY BEST LARGE-FLOWERED HYBRIDS OBTAINABLE IN THIS COUNTRY
Belle of Woking,  double, silvery-gray, Florida Type
All bloom on new wood except Belle of Woking and Sir Garnet Wolseley

Magazine  (Jun 1922)  Page(s) 91.  
 
C’est par une température tropicale que je me suis rendu, le 24 mai, à la magnifique exposition organisée à Chelsea par la Royal Horticultural Society....
Jackmann and Son, de Surrey, nous rappelle son nom par les clématites. Les variétés les plus admirées sont : Gloire de St-Julien, Blue Gem, Nellie Moser, Mrs George Jackmann, blanche, Empress of India, rose violacé, Mrs Spencer Castle, double mauve, Crimson King, rouge, Belle of Woking, double lilas.

Book  (1915)  Page(s) 176.  
 
Clematis. — There is no more popular hardy climber than the Clematis.  One or two should be grown in the smallest garden.  They can be used to cover any structure from a few feet to 50 feet high.  A selection of different sorts will ensure a succession of flowers from April to October. [...] There are numerous named varieties; a dozen of the best to furnish flowers from May to October are as follows:
Belle of Woking, silver grey...

Website/Catalog  (1907)  Page(s) 65.  
 
Clematis in pots to plant out in spring and summer.
General Collection.
11 Belle of Woking (florida), silver grey.

Website/Catalog  (1907)  Page(s) 75.  
 
Belle of Wocking, silvery grey double.

Book  (1906)  Page(s) 52.  
 
Principal garden varieties of Clematis:
Florida type. (June and July.)
Belle of Woking... Double, silvery grey.

Magazine  (Aug 1875)  Page(s) 189.  
 
Messrs. G. Jackman and Son, of Woking, forwarded to us a short time ago flowers of a New Double Clematis, named Belle of Woking.  It is a variety of A-1 quality, and is referred, along with C. Fortunei, one of its parents, to the florida type.  The leaves are ternate, with rather small ovate leaflets.  The flowers are rather more than 4 inches across, with much the same build and character as Duchess of Edinburgh, having about eight rows of sepals, which are obversely lanceolate, acuminate at the apex, and narrowed below into a short stalk-like base, but forming a close rosette about 3 inches in depth.  The colour is a decided but charmingly delicate mauve or silver-grey, the innermost sepals having here and there a bar or a dash of reddish-lilac, which, however, is scarcely apparent.  A small tuft of stamens occupies the centre, the filaments of which are white, and the anthers cream-coloured.  The uppermost or bractiform leaves are simple, variously formed, and more or less coloured, as often occurs in these double flowers.  It is an exceedingly fine acquisition.