Map no. 2 of a military survey of the northern trans Indus frontier / 
Walker, James Thomas.
[Calcutta :  lith. by H.M. Smith at the Survyr. Genl's Office, 
1853]
"This map forms a continuation of Lt. Walker's lithd. map of the ... frontier; all to the south of the latitude of Peshawur which appeared on that map has been revised".