a MUCH better photo of the icosahedron

[Gerald McGarvey]

The photo on the web page at invaluable.com:
http://www.invaluable.com/PartnerPages/Lot.aspx?SaleHouseID=1040019&SaleID=1120148&UNID=213544674
says the numbers are
11, 20, 21, 31, 41, 51, 61, 71, 81, 91, 101, 201, 301, 401 501, 601, 701, 
801, 901 and 202
This agrees with new sequences A124251 and A124250.

A picture of Urdu numerals 0-9:
http://members.fortunecity.com/mikecolley/langnum/num-urdu.gif

A picture showing Urdu Numerals:
http://dsal.uchicago.edu/digbooks/digpager.html?BOOKID=PK1983.N2_1999_V1&object=56

In Martin's diagram below, I think the 71? is 71,
the 701? is 801 and is next to 701.

-- Gerald

At 08:20 AM 12/15/2006, Martin Fuller wrote:
>Your guess is confirmed by a font found via wikipedia:
>http://en.wikipedia.org/wiki/Nasta%27l%C4%ABq
>then to the CRULP link. The digits are unicode 06F0 to
>06F9.
>
>Two more pictures via google search: icosahedron tipu
>sultan picture
>
>www.scran.ac.uk, item 2.11, same picture as Neil's
>first link (nb. it is reversed left-to-right). Has the
>comment: "Icosahedron box, each side with a
>mathematical value, and containing two manuscript
>notes, one a diagram of the 20 sides." That manuscript
>could be very useful if anyone can find a copy!
>
>www.invaluable.com, first item on page, has a picture
>of the box with the lid open.  It then mentions that
>the contained manuscript was lost but luckily had been
>annotated.
>
>            101
>   21                   81           901
>       501   *    201
>   *                   *  71?  701?   *     ??
>         401   301
>    ??       *       61            ??   601
>     * 41         91 *
>            51
>
>--- "N. J. A. Sloane" <njas at research.att.com> wrote:
>
> > my guess is that the 5 faces around the prominent
> > vertex (*)
> > facing the viewer read
> >
> >           101
> >
> >      501   *    201
> >
> >         401   301
> >
> >