other sites regarding porcelain and pottery back stamps

ARKLO POTTERY (1934-1998) / Ireland
Arklow Ware, etc.
Comprehensive site including back stamps and history of this Irish manufacturer / English language
https://arklowpottery.ie/arklow-back-stamps/

AUSTRALIAN  POTTER’S MARKS 
Various
A fabulous new resource for Australian back stamps / English language
australianpottersmarks.wordpress.com/

BELLEEK MARKS
Ribbon, dog with tower, Co. Fermanagh, etc.
Site by the Belleek company / English language
https://www.belleek.com/en/Date-Your-Belleek/cc-22.aspx

CANADIAN POTTERY
History and identification of 20th Century Canadian manufacturers of commercial mold-made pottery and ceramic wares / English language
www.canadianpotteryidentifier.com/

CERAMIC SIGNATURES
Excellent site to European and Scandinavian 20th century ceramics / English language
www.ceramic-signatures.com/

INSULATORS CERAMIC MARKS
Marks on Insulators worldwide / English language
myinsulators.com/hungary/marks.html

IDENTIFYING AUSTRALIAN POTTERY
Various
Place for people needing help to identify makers of Australian contemporary pottery / English language
www.flickr.com/groups/austpots/

JASON JACQUES
Various contemporary and historic artists / English language
https://www.jasonjacques.com

P.A.W POTTERY
Site by D. Turner, about the manufacturer Paul A. Wranitzky in Vranovská Ves (Czech Republic, former Frainersdorf)- founded in 1874 and operating until 1933 / English language
www.pawpottery.co.uk/marks.htm

STEIN COLLECTORS
Most common trademarks found on steins / English language
www.steincollectors.org/library/articles/marks/marks.htm

SYGNATURY 24 (Poland)
Comprehensive site in regards to pottery and porcelain marks / Polish language
www.sygnatury24.pl/

SWEDISH CERAMIC AND PORCELAIN MARKS
Excellent site byRonnie Gustafsson / Swedish language
www.signaturer.se/

UNKNOWN CERAMIC MAKERS’ PROJECT
Global effort to nail down obscure, illegible, incomplete, or otherwise unknown potter’s marks appearing on ceramic pieces / English language
potmarks.activeboard.com/

ZSOLNAY (Hungaria)
Building, Towers in circle, PECS
Excellent site by Jason Jacques (New York) in regards to Zsolnay marks. The factory was founded in 1853 by Miklós Zsolnay (1800-1880) in Pécs / English language
https://www.jasonjacques.com/historic/zsolnay