AV 9 Slot machine booklet #1827 ov1

AV 9 with one pane: T ( / ) + 0,10 (lilac) + 0,20 (olive) + 0,20 (olive) + 0,50 (green).
Coat of arms lion type I m75.
Batch number 1827.
T = empty, perforated stamp square with coloured oblique line printed.
ov1 = guide line 1 (coloured guide line or 'beam' or part thereof on pane top left corner).