I collected ancient imitations, fourrees and barbarous radiates, for decades. Here are some of them for sale, remarkably inexpensively. Many are here: http://augustusmath.hypermart.net/Imitation.html This is one example: Severus Alexander copper denarius--no traces of silver. [$10] and barbarous radiates (c. 270-273 AD) are here: http://augustusmath.hypermart.net/BarbarousRadiates.html Tetricus I. $9 Ancient imitations are interesting and, on my pages, inexpensive. You can buy five unusual and historical coins for the cost of one regular issue. If you don't know much about them, here is an educational site to get you started and much more: http://esty.ancients.info/imit/