Devon amulet to protect against witches, pixies, spirits and the forces of evil

The illustration to accompany this entry in Hewett's book.  The charm written on parchment used as an amulet against evil magics in Exeter, Devon.

"The word "Abracadabra" written on parchment was given by an Exeter white witch, to a person who desired to possess a talisman against the dominion of the grey witch, pixies, evil spirits and the powers of darkness ! It cost a guinea, and was sewn up in a small black silk bag one inch square. This was hung round the neck and never removed. Should it by chance fall to the ground, all its properties for good would be lost and a new charm must be procured from the same white witch, or dire misfortune would overtake the owner. In " Reminiscences and Reflections," of an old West Country clergyman (the Rev. W. H. Thornton, rector of North Bovey), the word "Abracadabra" occurs on page 44, in connection with a meeting of spiritualists, held in London in 1848."

Hewett 1900

Map - Exeter

Map - North Bovey

[The symbols look vaguely alchemical, but I can not identify any directly. The bottom one looks a bit like the Nordic Algez, while one on the left looks a bit like astrological Torus, possibly with a sign for completnes above it... Any advances?]