Manasara 57.10

57.10

vedāśikyaṃśakaṃ tuṅge mūrdhnituṅgaṃ guṇāṃśakam
daśāṃśaṃ vaktratuṅgaṃ syād guṇāṃśaṃ grīvatuṅgakam

The top-knot has four parts in height, the crown of the head three parts in height; / the face should be ten parts in height, the neck three parts in height;