Acronym	sesidip
Name	small-snub-icosicosidodecahedron prism
Circumradius	sqrt[17+3 sqrt(5)+sqrt[102+46 sqrt(5)]]/4 = 1.541531
Colonel of regiment	(is itself locally convex – no other uniform polyhedral members)
Face vector	120, 420, 404, 114
External links

As abstract polytope sesidip is isomorphic to sirsiddip, thereby replacing prograde icosahedral triangles by retrrograde ones, resp. replacing seside by sirsid.

Incidence matrix according to Dynkin symbol

x s5/2s3s3*b

. demi( .   . .    ) | 120 |  1   2   2   2 |  2  2  2  1  1  1   3 |  1  1  1  3 1
---------------------+-----+----------------+-----------------------+--------------
x demi( .   . .    ) |   2 | 60   *   *   * |  2  2  2  0  0  0   0 |  1  1  1  3 0
. sefa( s5/2s .    ) |   2 |  * 120   *   * |  1  0  0  1  0  0   1 |  1  0  0  1 1
. sefa( s   . s3*b ) |   2 |  *   * 120   * |  0  1  0  0  1  0   1 |  0  1  0  1 1
. sefa( .   s3s    ) |   2 |  *   *   * 120 |  0  0  1  0  0  1   1 |  0  0  1  1 1
---------------------+-----+----------------+-----------------------+--------------
x sefa( s5/2s .    ) |   4 |  2   2   0   0 | 60  *  *  *  *  *   * |  1  0  0  1 0
x sefa( s   . s3*b ) |   4 |  2   0   2   0 |  * 60  *  *  *  *   * |  0  1  0  1 0
x sefa( .   s3s    ) |   4 |  2   0   0   2 |  *  * 60  *  *  *   * |  0  0  1  1 0
.       s5/2s .      ♦   5 |  0   5   0   0 |  *  *  * 24  *  *   * |  1  0  0  0 1
.       s   . s3*b   ♦   3 |  0   0   3   0 |  *  *  *  * 40  *   * |  0  1  0  0 1
.       .   s3s      ♦   3 |  0   0   0   3 |  *  *  *  *  * 40   * |  0  0  1  0 1
. sefa( s5/2s3s3*b ) |   3 |  0   1   1   1 |  *  *  *  *  *  * 120 |  0  0  0  1 1
---------------------+-----+----------------+-----------------------+--------------
x       s5/2s .      ♦  10 |  5  10   0   0 |  5  0  0  2  0  0   0 | 12  *  *  * *
x       s   . s3*b   ♦   6 |  3   0   6   0 |  0  3  0  0  2  0   0 |  * 20  *  * *
x       .   s3s      ♦   6 |  3   0   0   6 |  0  0  3  0  0  2   0 |  *  * 20  * *
x sefa( s5/2s3s3*b ) ♦   6 |  3   2   2   2 |  1  1  1  0  0  0   2 |  *  *  * 60 *
.       s5/2s3s3*b   ♦  60 |  0  60  60  60 |  0  0  0 12 20 20  60 |  *  *  *  * 2