AV 6 Slot machine booklet #1549 tl1+ov1

AV 6 with one pane: 0,30 (grey) + T ( / ) + 0,30 (grey) + T ( / ) + 0,40 (orange).
Coat of arms lion type II m63 booklets.
Batch number 1549.
T = empty, perforated stamp square with coloured oblique line printed.
tl1 = control number (placed in the left sheet margin, on the top left corner.
ov1 = guide line 1 (coloured guide line or 'beam' or part thereof on pane top left corner).