sacred script \n message appears on slate with reference to bible in which number is found, see also page 345 \n gordon r. mckenney
1938
the jinx 1-50 Gordon R. McKenney
Sacred Script
message appears on slate with reference to bible in which number is found, see also page 345
jack miller slate routine \n two slates, no flap \n jack miller \n slate display sequence \n jack miller \n burling hull
1945/27
tarbell course in magic — volume 4 Jack Miller
omega spirit slates \n display sequence for two slates with different colored surfaces, writing appears, example: some freely chosen cards placed between slates, some of their names appear written \n robert parrish
1967
the pallbearers review vol. 1-4 Robert Parrish
Omega Spirit Slates
display sequence for two slates with different colored surfaces, writing appears, example: some freely chosen cards placed between slates, some of their names appear written
the spirit of the faberlands \n two slates, flapless, apparently showing all four sides empty, message appears on two sides \n al mann \n harry faber \n samuel berland \n faberlands' "spirits?" in "the sphinx" vol. 20, no. 3
1976
master slate secrets — part i Al Mann, Harry Faber, Samuel Berland
The Spirit of the Faberlands
two slates, flapless, apparently showing all four sides empty, message appears on two sides
Inspired by
Faberlands' "Spirits?" in "The Sphinx" Vol. 20, No. 3
spirits by the number \n two slates, flapless, apparently showing all four sides empty, message appears on one side, numbered sides \n al mann
1976
master slate secrets — part i Al Mann
Spirits by the Number
two slates, flapless, apparently showing all four sides empty, message appears on one side, numbered sides
slate display sequence \n done with cardboard \n jack miller \n burling hull \n jack miller slate routine \n jack miller
1985
self-working paper magic Jack Miller, Burling Hull