What is the writing on the attached image?

[Dan Lusthaus]

Madhav,

They appear to be a version of the Brahmi numerals, 1 through 9.
See http://en.wikipedia.org/wiki/Brahmi_numeral

best,
Dan

----- Original Message ----- 
From: "Deshpande, Madhav" <mmdesh at UMICH.EDU>

>I have attached an image of the Indian postal stamp showing the picture of
>Pāṇini.  Does the vertical writing to the left of Pāṇini mean anything?
>
> Madhav