Hello Warren, as Fer de Vries has already written the "azimuthal" sundial isn't very suitable for your wall with a declination of 64 deg.
I suggest a little change in the two images attached. In one the style is tilted downward and form an angle of 45 deg with the plane, in the 2nd the style is horizontal and tilted toward right and form with the perpendicular an angle of 30 deg. In the first the date line are concentric ellipses (one every 15 days) As you can see the date line now are enough spaced. Ciao Gianni Ferrari Attachment converted: Macintosh HD:w1.gif (GIFf/JVWR) (0000F4ED) Attachment converted: Macintosh HD:w2.gif (GIFf/JVWR) (0000F4EE)
