I've only just got my head round grills and yes that's a e grill 14 x 16 although you can see the points clearly it isn't a good impresion there is usually more depth to them in which you can see the tips of the points, the points on this grill points down some grills have the points going through the face of the stamp like the a, b, c, grills.
Here is a link that might help if you need any more info just scroll down the page a little for the info
http://www.theswedishtiger.com/ID73.html