Customized version of http://www.thingiverse.com/thing:74322

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=74322

Using the following options:

text_size = 25
include_hole = no
text_vertical_position = -15
picture_shape = square
pane_size = large
hole_diameter = 10
text_line_5 =
text_line_4 =
text_line_3 = A
text_line_2 =
text_line_1 = S
image_file = lithopane_new20150903-13780-vdee5s-0.dat
picture_orientation = horizontal
number_of_layers = 9
text_reverse = yes
layer_height = 0.1