<p style='text-align: justify;'>This illustrated Nepalese paper manuscript, dated 1838 CE (Nepāla Saṃvat 958 written on the flyleaf), contains the first portion a Tantric Buddhist text called <i>Ādiyogasamādhi</i> (see <a target='_blank' class='externalLink' href='http://cudl.lib.cam.ac.uk/view/MS-ADD-01278/1'>Add.1278</a>), belonging to the <i>Sarvadurgatipariśodhana</i> cycle. Most of the textual material of the present work is included in the so-called Version B of the <i>Sarvadurgatipariśodhanatantra</i> (see Skorupski 1983: xviii), where it susbtitues the 'Basic Tantra' (consisting of the description of the ritual <i>maṇḍala</i>). </p>