No. 18 Ajaíòà cave inscription, is on the next pillar, below a similar figure. (ASWI)

Text.

Vipaùùi samyaksaìbuddhaõ Chetika(ya)rikasya
____________________________________________
"Vipaùùi, the perfectly wise; (the gift) of Chetikayarika." (ASWI)
(Vipassè is the name of one of the five human Buddhas.)