50mm, This a really neat relic.  It is a Civil War era Stonewall Jackson Medal, dug in Charleston, South Carolina.  These were commissioned in 1863 by Charles Lamar of Savannah, Georgia to be awarded to each of the officers and men who served in Jackson's "Stonewall Brigade" in commemoration of their valor and the death of Stonewall Jackson. They were struck of pewter in France and arrived in Wilmington, N.C.  in 1864.   Before they could be awarded, Charles Lamar had been killed leading his troops and these sat in a cotton warehouse until 1894 when they were rediscovered.  Then, at this time, they were donated to the Ladies' Auxiliary of the Confederate Veterans Association and sold for $1 each with proceeds used for the benefit of disabled Confederate veterans.  On the obverse is a bust of General "Stonewall" Jackson and on the reverse within a wreath of corn and tobacco are a list of the battles in which the Stonewall Brigade had participated up to the death of Jackson.