Calligraphic arrangement of part of the opening sentence of the Will and Testament of 'Abdu'l-Baha

Calligraphic arrangement of part of the opening sentence of the Will and Testament of 'Abdu'l-Baha: 'All Praise to Him Who, by the Shield of His Covenant, hath guarded the Temple of His Cause.' (The Baha'i World 1976-1979)