WWPCM:  "Hallmark" 
Kansas City, MO 64141, USA
  1960-1970s ?
it's only publisher - manufacturer of greeting cards,
cards printed by different makers (first in West Germany)

1950? "Charlie Brown"
d14430
update 07.04.2014
since
1961
standard brand
d04644
update 16.03.2010
since
?
Standard patterns
d03914
update 03.03.2010
since
?
Arrco standard
d04185
update 26.01.2005
since
?
Fournier standard
d04618
update 15.09.2008
? "Natures sketchbook by Marjolein Bastin"
d12039
update
22.03.2011
? "?"
d15200
update 28.10.2014
? "?"
d11081
update
06.02.2010
1973 brand "OKT"
d06497
update
04.01.2007
1975 Standard
d03152
update 30.10.2007