Morehead's Magnetic Plaster

Morehead's Magnetic Plaster was a body plaster that was produced by D.C. Morehead as a pain relief remedy in mid-to-late 19th century, promoted as affecting healing magnetism. Among the philatelist set, "Morehead's Magnetic Plaster" is notable for its 1&cent; stamp, issued through 1849, a quantity of 196,200 thought to be in existence.

Composition
Oleson's "Secret Nostrums and Systems of Medicine" (1890) reports the formula as being "tar and extract of belladonna, each in equal parts," though the claim is prefaced as being hearsay.