Browse Items (1 total) Creator is exactly "Monocacy Mills" Browse All Browse by Tag Search Items Sort by: Title Creator Date Added Monocacy Mills, Maryland, Monocacy Mills, 1841, 12 1/2 cents Indistinct coin, coin inverted, Kelly plate, July 27, 1841; imprint: MURPHY, PR. BALT. Tags: 12 and half cents, error, indistinct coin, maryland Featured Item No featured items are available.