The second coin appears to imitate Tetricus II / Spes. The so-called "barbarous radiates" date to the 270s and were the product of unofficial mints in Britain and Gaul. Compare the official prototype below, noting in particular the beardless portrait, the lifted skirt and the blousing of the garment.
Wow! You guys responded fast! Thanks for the info! One of my dealers gave these to me as a gift (he's been trying to get me into ancients for a while now lol) but my skill with identifying ancients is abysmal. Very much appreciate the assist!