AV 5 E1b Slot machine booklet #1492 N. Black overp. on both cover

Black overprint on both cover pages.
AV 5 N with one pane:
0,15 (yellow) + T ( / ) + 0,25 (lilac)    + T ( / ) + 0,50 (blue)
0,05 (violet)   + T ( / ) + 0,05 (violet)  + T ( / ) + T ( / ).

Coat of arms lion type II m63 booklets.
Batch number 1492 (= b).
E1 = Cover reddish cardboard.
b = 0,15 mk brownish yellow, uv: bright yellowish brown.
N = 2x 0,05 mk at pane's bottom.
T = empty, perforated stamp square with coloured oblique line printed.