Son-in-law and daughter of Nobel Prize winners Marie and Pierre Curie. Pair of vintage 4.5 x 6.5 portrait photos by Dora Horovitz, each affixed to a 7.25 x 10.5 photographers mount and each signed on the mount, “F. Joliot,” and “I Joliot Curie,” respectively. In very good condition, with light silvering to photos and scattered foxing, creasing and slight surface loss to mounts. Both signatures are bold and largely unaffected by the flaws. R&R COA.