The signs on the table are actually a bit skewise. The table is supposed to be the veiled referency to the Table of Shewbread, it is a diagram correlating to Chokmah as the pinnacle of the Supernal Mercy, and specifically to the Signs of the Zodiac used in the Zelator Ritual of Admission in the Golden Dawn. The signs you see on the table are the Signs of Aquarius, Leo, and Scorpio. Taurus is missing from the image of the fixed signs, because it is analogous to the Five of Disks, Mercury in Taurus, which would be contradictory to the first principle power of the Magus, To Dare. The Magician is facing east, in the Garden of Eden before the Fall.
Tzaddi in the Second Order principles of the Sepher Yetzirah mediations called "The Cube of Space" connects the top of the Cube, Mercury, with the South face of the Cube, Sol. It is a reference to the Wand of the Magus being the core of the flames found in the Heart Center, or the Anahatta Chakra. This is done in Waite's hand as opposed to Pamela's. Also note, the This is how it corresponds to YHVH Eloah Va-Da'ath, which is Mercury's aspect as the communicator of the solar principle, Thoth as the mouth of Ra. Likely she never knew this, and it is one of the tell-tale marks he left on the cards that made it standard for the Golden Dawn adepts, in ways the general public were unaware. There are TONS of these marks.
There is also a reference to the vault of the Adepti on this card.