Two carved seals

Chinese Works of Art
Two carved seals
Both of square section, both bearing incised signatures possibly reading jing xuan along the sides, both seal faces carved to read Huang Beishou; the first, taller of predominantly gray color marked in veins of bright scarlet, incised in a four-stanza auspicious poem; the second, shorter with rounded corners, the stone of predominantly custard color whorled in veins of scarlet.
2 3/8in (6cm) height of first and taller (2).