As can be seen from the image, the black clay bulla is in a very good state of preservation. It measures 13.2 x 11.9 x 3.8-1.9 mm, while the seal impression measures 11.9 x 9.9 mm. On the back of the bulla a papyrus imprint is clearly visible along with a groove left by the chord that tied the scroll. The seal was likely set in a bezel of a ring, as is clear from the groove around the edge of the seal impression.

The seal, as can be seen from the line tracing above, is dominated by a royal emblem, what Deutsch considers a two-winged sun disk. The inscription is found above and below the emblem and reads:

לחזקיהו ×?×—/×– מלך יהדה

[Belonging to] Hezekiah, [son of] Ahaz, King of Judah.

For those unfamiliar with the script, here is a key from Deutsch’s volume:

The provenance of the seal impression is unfortuantly unknown, though there is no good reason to doubt its authenticity. There are actually four royal bullae beloinging to Hezekiah, impressed by three different seals, in the Kaufman collection.