Bull symbol for Luke
The
attributes: Book
Quill pen
Painting utensils
Slight indication of the Madonna with child on the right
Hypothetical indication the Luke was the first to paint the Madonna (Picture from the Vatican)
However it was painted only in the 13th century.

Text:
Acts of the Apostles traversed by a 2-headed snake.
The snake of the Doctor Asclepius; for Luke was known as a doctor and Paul’s traveling companion.
Between the 11 apostles eating a meal, at which Jesus bade the apostles to to leave Jerusalem to receive the great baptism of God. Jesus gives instructions and afterward