The NMHM also has a collection of material from Dr. Jackson, similiar to that from the Mutter Museum and discussed here...
By AMANDA SCHAFFER,
From brain tissue to gallstones, doctors have long preserved specimens from their patients — sometimes as trophies, sometimes as teaching tools, sometimes as curiosities or even art. But Dr. Chevalier Jackson went much further than most.
A laryngologist who worked in the late 19th and early 20th centuries, he preserved more than 2,000 objects that people had swallowed or inhaled: nails and bolts, miniature binoculars, a radiator key, a child's perfect-attendance pin, a medallion that says "Carry me for good luck."