wwpcm: "Ferdinand Piatnik & Sons Ltd."
Vienna, Austria, since 1824,   http://www.piatnik.com/     
in 1824-1843 - "Anton Moser" 
in 1843-1882 - "Ferdinand Piatnik vormals Anton Moser"
in 1882-1917 - "Ferdinand Piatnik & Soehne"
in 1917-1939 - "Ferdinand Piatnik & Soehne AG"
"Piatnik" had absorbed several makers:
"Anton Herrl Sr." in 1858 (1855?)
"Carl Holdhaus" in 1875
"E.Knepper&Co." in 1876
"Johann And. Sageder" in 1880 (1894?)
"Carl Titze&Schinkay" in 1885 (?)
"Ferdinand Pittner" in 1890 (1897?)
"E.Knepper" in 1890
"Ludwig Jos. Jaeger" in 1895 (1893?)
"Ludwig Giergl" in 1898
"Johann Ritter&Cie." in 1899
"Johann Nejedly" in 1900 (1896?)
"Samuel Koenigsgarten" in 1904
"Budapester Playing Cards Factory" in 1907
"Unio Playing-card Factory" in 1909
"Jozsef Glanz" in 1912

HEAD OFFICE
PIATNIK VIENNA
Wiener Spielkartenfabrik Ferd. Piatnik & Sohne
Since 1824
Hütteldorfer Straße 229 - 231
Postfach 79,
A - 1140 Wien
Austria
Tel.: 00 43 1 914 41 51-0
Fax: 00 43 1 911 14 45
E-Mail: export@piatnik.com
info@piatnik.com
marketing@piatnik.com
   
PIATNIK DEUTSCHLAND GmbH
Since 1989
Dessauer Str. 4-6
D-41065 Monchengladbach
Germany
Tel.: 00 49 2161 17 79 40
Fax: 00 49 2161 17 79 50
E-mail: bert-nilgen@t-online.de
PIATNIK of AMERICA Inc.
Since 1993
362 South Avenue
New Canaan, CT 06840,
USA
Tel.:001 800 962 3468
Fax.: 001 203 972 0713
E-mail: orders@piatnik.com
   
PIATNIK PRAHA S.R.O.
Since 1994
Vlastina 23/889
Praha 6 - Liboc 16101
Tschechien
Tel.: 00420 2 20 409 874
Fax: 00420 2 20 409 875
PIATNIK BUDAPEST K.F.T.
Since 1994
Arpad fejedelem ut 77 / b
H-1037 Budapest,
Hungary
Tel: 00 36 1 388 4122
Fax.: 00 36 1 250 0272

E-mail: piatnik@interware.hu

list of double decks 2001-2600:

No.2001-2100 No.2101-2200 No.2201-2300
No.2301-2400 No.2401-2500 No.2501-2600
Aces
usually marked aces of spades&hearts
hA1 hA2 sA1 sA2 sA3

date of "Piatnik" decks (on russian)
Ace of Hearts horses

1899< 1900 1903 1913  
d10271d02 d03929d03 d01698d11 d01698d05b before changed to AG in 1917
1918 (16 ?) 1918 1920 1920  
d01698d05c d00491 d01698 d01638d07  
1923 1930 1934 1937/patience 1939
d00007d06 d04543d04 d00815d02 d05176d02 d04606
since 1945 1952 1979 1996  
d04542d05 h001 d00815 d00815d03  

Some souvenir Aces 
aces from Hungary (?) decks:                                                                                              

0082sa 0082ha 0082da 0082ca

Extra cards

0077a001 0077a002 d04424a001 d00129a01 d00662a01
d04424a002 d00130a01 d04424a003 d00993a01
d04460s01 d04460s02 d04460s03 d04460s04 d04460s05 d04460s06

Bridge scoring

a01 a02 a03 a04 a05 a06
a07 a08 d04594a003      
probably Piatnik: a09 a10 a11