Production Overprints on the Back of A-20 Cigarrette Stamps
SERIES
No.
SERIES
LETTER
MONTH  LETTER  CODE  ON  BACK  OF  STAMP
A B C E I N O R S T U Z

102 A?





OA




?












103 ?











O?












104 O







SO


B





OB





105 B
BB



OB RB
TB
ZB
S?












106 S? AS?

ES







C?












107 C?











U?












108 U AU
CU EU IU NU   RU   TU UU ZU
R
BR



OR
SR



109 R AR
CR ER IR NR
RR SR TR UR ZR
A
BA



OA
SA



110 A AA
CA EA IA NA
RA SA TA UA ZA
N
BN



ON RN




111 N AN
CN EN IN NN
RN SN TN UN ZN
T
BT



OT
ST
UT

112 T AT BT CT ET IT NT
RT ST TT UT ZT
I

CI


OI





113 I AI BI CI EI I I NI
RI SI TI UI ZI
Z





OZ





114 Z AZ BZ CZ EZ IZ NZ
RZ SZ TZ UZ ZZ
E
BE



OE
SE



115 E AE BE CE EE IE NE
RE SE TE UE ZE
O





OO





116 O AO BO CO EO IO NO
RO SO TO UO ZO
B
BB



OB





117 B AB BB CB EB IB NB
RB SB TB UB ZB
S





OS





118 S AS BS CS ES IS NS
RS SS TS US ZS
C





OC





119 C AC
CC EC IC NC
RC SC TC UC ZC
U
BU



OU





120 U AU BU CU EU IU NU
RU SU TU UU ZU
R





OR RR




121 R AR BR CR ER IR NR
RR SR TR UR ZR
A
BA



OA





122 A AA BA CA EA IA NA
RA SA TA UA ZA
N
BN



ON





123 N AN BN CN EN IN NN
RN SN TN UN ZN
T
BT



OT





124 T AT
CT ET IT NT
RT ST TT UT ZT
I
BI



OI





125 I AI
CI
NI
RI SI TI UI ZI
Wide Z
BZ CZ EZ
NZ OZ
SZ
UZ
Invert Z









UZ

125 Z AZ

IZ NZ OZ

TZ
ZZ
Narrow O
BO
EO IO
OO?





125 O AO BO CO EO IO NO OO RO SO TO

Narrow Oo AO
CO
IO
OO? RO



Invert O
BO










125 E AE BE CE EE IE NE OE RE
TE UE ZE
Narrow E

CE



RE SE
UE ZE
Invert E AE BE CE EE IE NE
RE SE TE UE

125 B
BB CB


OB RB SB
UB
Narrow B
BB



OB




 
    Overprint inverted, i.e., printed downwards.
NR   Font printed in blue or violet blue in a sarif font face.
NR   Extrapolated; not yet seen.
NR   Font printed in shades of red in a sans sarif font face.
NR   Font printed in blue or violet blue in a sans sarif font face.
o   Red dot printed on the face of the stamp.
Wide   Normal wide version of the stamp.
Narrow   Narrow version of the stamp introduced during Series 125.