The pattern for the top plate appears to be KPM 102: http://www.replacements.com/webquote/kpmkpm102.htm

I think you are correct about it being anchor pottery - here is a site that shows a number of their marks, and a couple of them look nearly identical to yours: http://www.oldandsold.com/pottery/usa2.shtml

Hi, Very nice set! I believe they were made by Belleek china, Ireland - quite collectible. I have seen similar tea cups but not the mug, so I would put the value at $20-$30 if I were trying to sell...

Hi, Are the pieces marked at all? Typical ginger jars in Satsuma or Kutani style (both are regions, not specific companies) sell for $10-20, but yours does appear very well made so if its from an identified...

Hi, I can't find the mark in any of my resources, but I did find a Chris Coyle that does stoneware plates. Can't find any bio info on him really, but these two pages definitely make it seem plausible...

Hi, Very lovely China! I wasn't able to solve any of your mysteries completely, but I found some info that might at least help you a bit. According to one site, (linked below) the crown with the 'bone...

I think I cracked this one for you. The words on the top and bottom are Superior : Quality, and the word running across the middle is warranted. https://kovels.com/marks/pottery-porcelain-marks/circle-or-oval.html?eid=9144...