Arjuna in the guise of an ascetic had earlier encountered and propitiated Shiva in the guise of a hunter, and had thus obtained powerful weapons (bazaar art from the Ravi Varma Press, c.1910's)

Source: ebay, Mar. 2008

Arjuna kills Jayadratha (modern water color on cotton)

Source: http://www.exoticindia.com/product/WD95/
(downloaded July 2005)