rubber stamp icon for educational use etc. / japanese

appreciate approval assessment award background badge best checked choice concept congrats congratulations document done education educational elementary etc etcnkakuninshimashita etcnyokudekimashita excellent good grunge hand homework icon icons idea illustration illustrationn isolated japanese label learning logo mark medal nrubber okay positive quality red rubber school seal set setn sign smiley stamp sticker symbol teacher teachers thumbs use using vector vintage well