Of American Historic interest this in-house letter box was created for the children of the Young Women’s Institute in Philadelphia, U.S.A.The Young Women’s Union (YWU) was established in 1885 and formally incorporated in 1896 as a community service organization and settlement house in Philadelphia. The YWU was initially led by Frannie Binswanger and thirty other young women from middle class Jewsh families in Philadelphia who desired to provide services for immigrants, including education and recreation. Binswanger, the daughter of a Rabbi, was born in Philadelphia and was an active member at Mikveh Israel, now the oldest continuous synagogue in the United States.The founding mission of the Young Women’s Union’s missions was to provide childcare for Eastern European Jewish immigrant mothers. The YWU opened a small kindergarten in 1885 at 238 Pine Street, and was run by unmarried Jewish women. Staff at the kindergarten worked to help immigrant children adjust to life in Philade...