you are correct. in India still the most needed for cooking is this. it is a stone curved. it is available in different sizes and shapes. people had no other correct tool than this to past species. the older generation claims that the taste of crushing in this is Unmatchable. while preparing itself the aroma increases your appetite. NRI'S settled in other countries, when they come to India purchase theses small ones to crush species in their kichins. you reminded us that. good post.