This United States charity seal was issued to support the Sister Kenny Foundation, an organization dedicated to the treatment and rehabilitation of polio patients using the pioneering methods of Sister Elizabeth Kenny. The design shows a young girl using crutches before a mirror, symbolizing recovery and hope through medical care and public support. Such seals were widely used on mail to promote fundraising rather than for postal payment. Collector interest lies in its strong humanitarian theme linked to the global fight against poliomyelitis during the mid-20th century. A meaningful addition to medical, Red Cross, or health-campaign thematic collections.