Twenty-four images of Vishnu in according to the Rupamaṇdana.1

Upper right hand: Padma
Lower right hand: Gada
Vishnu — the Pervader
Upper left hand: Sankha
Lower left hand: Chakra
  1. Gupte, R. S., Iconography of the Hindus Buddhists and Jains, 1972, p. 97