THE COMMONWEALTH & EMANCIPATOR, Boston, January 25, 1851  A very scarce title that existed for just 28 issues thru July 12, 1851. This is issue number 4.
This was one of several anti-slavery newspapers that existed in that era, but it is among only five we have ever seen.
Four pages, large folio size, several folds with foxing to folds at the top half of the front page, minor fold perforation near the top as well. Folder size noted is for the issue folded in half.