INTRODUCTION; REIGN OF KHRI SRONG-LDE-BRTSAN 755-c. 794 AD; The Lhasa Zhol rdo-rings; The Bsam-yas rdo-rings; The Bell at Bsam-yas; The rdo-rings near the bridge-head at 'Phyong-rgyas 36 ; REIGN OF KHRI LDE-SRONG-BRTSAN c. 800-815 AD; Inscriptions at Zhwa'i Lha-khang; Fragmentary Inscription near Zhwa'i Lha-khang ; The Rkong-po Inscription; The Skar-cung rdo-rings; The Bell at Khra-'brug; Rdo-rings at the tomb of Khri Lde-srong-brtsan; REIGN OF KHRI GTSUG-LDE-BRTSAN 815-836 AD; The Lcang-bu Inscriptions; The Treaty of 821/822 A.D; The Bell at Yer-pa; ADDENDUM; Rdo-rings at Rgyal Lha-khang; Rdo-rings at Gtsang Grong; Pillars at Nyabzo; Inscriptions at Ka-ru Ko-sa; Inscriptions near Ger; BIBLIOGRAPHY