This is the fourth planetary square talisman from Agrippa for today following those for Venus (which it'd be best if you read first), Mercury and Jupiter. So look up the other three articles for more in depth information about the ritual itself if you're interested, especially the one on the Venus talisman.
Moving on with it, Agrippa said the following about the Saturn kamea:
"The first of them is assigned to Saturn, and consists of a square of three, containing the particular numbers of nine, and in every line three every way, and through each Diameter making fifteen. Now the whole sum of numbers is fourty five/ Over this are of Divine names set such names as fill up the numbers with an Intelligency to what is good, with a spirit to what is bad, and out of the same numbers is drawn the seal, or Character of Saturn, and of the spirits thereof, such as we shall beneath ascribe to its table. They say that this table being with a fortunate Saturn engraved on a plate of lead, doth help to bring forth, or birth, and to make a man safe, and powerfull, and to cause success of petitions with princes, and powers: but if it be done with an unfortunate Saturn, that it hinders buildings, plantings, and the like, and casts a man from honours, and dignities, and causes discords, and quarrellings, and disperses an Army."