Adams Real English ironstone Micratex ( decoration completely under grazed) Sugar Bowl

 The Adams family had potteries in Staffordshire as early as 1650. At that date two brothers, William and Thomas had separate ventures in Burslem. 

 Such family activity has continued to the present. William Adams and Company, with large potteries in Tunstall is managed by members who are the 11th and 12th generations in direct descent from the original 17th century Adams of Burslem. (Now part of the Wedgwood Group)

Your mark dates 1966 to 1978, to present. 

I don't see much Value here. $25.00 tops. you can find tons of these for sale

please note, I do not claim to be an expert.