The Collected Tantras of the Ancients (rnying ma rgyud ’bum) is a canon of esoteric scriptures revered by the Nyingma (rnying ma) or “Ancient” school of Tibetan Buddhism. THL has cataloged several editions of this important body of indigenous Tibetan works, and page scans of some editions have been provided by the
Tibetan Buddhist Resource Center.
Tibetan and Himalayan Library