I’m calling this vintage letter T drawing, T is for twins. It is one of a collection of alphabet letters that features children wearing red and white with a black letter image. In this one we have a pair of twin girls leaning on the letter T like a pair of bookends. Each child is reading a book. This fancy letter T drawing, like all of the letters in this set, from the 1908 work Dream Blocks by Aileen Cleveland Higgins and illustrated by Jessie Wilcox Smith (1863-1935); is in the public domain.
This image is copyright free and in the public domain anywhere that extends copyrights 70 years after death or at least 120 years after publication when the original illustrator is unknown.