In 1995 Lindroth collaborated with Open Society Fund and Pen Pals for Peace to create Polaroid 20x24 photographs for a book of children's 'etters from Sarjevo entitled "Dear Unknown Friend". The exhibition, "Dear Unknown Friend, Children's Letters from Sarajevo", consisting of Polaroid 20x24 photographs of the letters, toured the Balkans in 1996 and 1997 and returned to the State Museum of Pennsylvania in 1999.