Guy, John: 'Indian Temple Sculpture', London, V & A Publication, 2007, p.139, pl.156. ISBN 9781851775095.
Parpola, Asko, Pande, B.M. and Koskikallio, Petteri (eds.). Corpus of Indus Seals and Inscriptions. Volume 3: New material, untraced objects, and collections outside India and Pakistan. Part 1: Mohenjo-daro and Harappa. Helsinki 2010. pp. 34 and 415, number M-1727.
Seal, steatite, Mohenjo Daro, Indus valley, 2500 B.C., Pakistan
Length: 1 1/16 in, Width: 1 in, Height: 0.5 in
A large number of seals of this type have been excavated from the Harappan civilization sites of the Indus Valley. The majority are carved with animal figures and a pictographic inscription in a script which still remains undeciphered. The horned bull (?) is represented standing before a curious vessel, possibly to be interpreted as a container for the intoxicating soma liquid drunk by priests in Vedic rituals.
Rectangular seal depicting a standing unicorn or bull with a two-tiered receptacle on a pole beneath its head. There is a row of four pictograms along the top over the beast's body The animal has a harness round its neck and upper body.