15mm.co.uk is having a sale on their American Civil War line over in their webshop. Until March 1st, you can get these 15mm models at 15% off. Seems like an appropriate number.
From the announcement:
15mm.co.uk has taken 15% off the entire Potomac 15mm American Civil War range. Infantry, Cavalry, Command and Artillery. Single figure purchase and the offer lasts until the end of the month. If you like ACW then please click through and read on.