Catalogue entry no. 555b by Max Loehr:
555 Pair of Pigs
Mottled brownish stone with glossy, polished surfaces; iron oxide stain on the head of one of the figures. The parts are defined by resolutely and sharply cut sloping facets, arranged in a more formalistic manner than in the preceding pair. Small perforations through the tail ridge and below the snout. Late Western or Eastern Han.