If one wishes to use the Gra Tree, then it might be useful to go the whole hog and use/create a deck that incorporates the Gra attributions. The first to do so as far as I am aware was W. Wynn Westcott in his essay on the
Isiac Tablet of Bembo:
quote:
"The dogmas of the Sepher Yetzirah also form a perfect Tarot. The Three Mothers, which are: - Aleph, Air, the Firmament, the Holy Spirit. The Human respiration, the Chest. 13. Mem, Water, the Earth, the Belly, the Womb. 21. Shin, Fire, the Heavens of Stars and Suns, the Brain, the Head. These are represented by the Centre of the Isiac Tablet.
"The seven doubles which correspond to the planets, and the median part of the Isiac Tablet: - 2, Beth, Luna, Nature; 3, Ghimel, Mars, Force; 4, Daleth, Sun, Fertility; 11, Kaph, Venus, Generation; 17, Pe, Mercury, Wisdom; 20, Resh, Saturn, Peace; 22, or O, Tau, Jupiter, Beauty, and the Twelve Single, corresponding to the Zodiacal signs, and the Upper Region of the Isiac Tablet . . ."
End quote from
The Isiac Tablet of Bembo by William Wynn Westcott."
Note beside his use of Gra attributions his "22, or 0, Tau."
Westcott created his own deck (he later changed the attributions on them to correspond with those of the GD).
These are the attributions used in some 20th century Spanish decks. Decker/Dummet suggest the source for the attributions of these Spanish decks is Westcott's essay on the 'Isiac Tablet of Bembo' in which he uses the Gra attributions. They do not give their reasons for this suggestion. However, Westcott gave a lecture on this to the Theosophical Society, and the essay was distributed widely through the theosophical society; on the 1st of January 1908 the formation of the Order of Christian Mystics was announced,s co-founded in Philadelphia in the USA by two Theosophists, Dr. Frank Homer Curtiss and Mrs. Harriette Augusta Curtiss. They published two volumes on the tarot, The Key to the Universe and The Key of Destiny that use the Gra attributions.
(Both of these publications are available as pdf files on the web btw.)
A description of Westcott's pen & ink deck with the Gra attributions can be seen here:
http://green-door.narod.ru/west-tarot.html