I think it is called Plexiglas.
But whatever it is made of, the transparent lectern was great for James' "Weekend Reflections."
Today we visited the convent of the Sisters of Zion in Ein Kerem.
There was the stained glass window of Prophet Elie (Elijah) reflected, next to the book of Psalms!
And looking straight down through the lectern, you can see the vaulted ceiling of the church.