Help! I can't I.D. this LRB. Sadly I've had it for months, and this is my first crack at it. It seems to be a Galerius as the obverse legend reads something like: GAL VAL MAXIMIANVS NOB CAES. The reverse reads: GENIO POPV L IRO--NI. Where it seems it should be: GENIO POPVLI ROMANI. The p in POPV has been blundered, the engraver forgot the loop. Mint mark is KL- . Sorry for the crummy pictures.
I think it looks something like Alexandria RIC VI 27 Galerius Maximian AE follis, Alexandria. 297-298 AD. GAL VAL MAXIMIANVS NOB CAES, laureate head right with divergent wreath ties / GENIO POPV-L-I ROMANI, Genius standing left, modius on head, naked except for chlamys over left shoulder, holding patera from which liquid flows, and cornucopiae. Gamma in right field, mintmark ALE. I haven't located the one with the same field mark as yours just yet.
I think I've found it: RIC VI Alexandria 15b. If you haven't looked, take a gander on Helvetica's tables at http://www.catbikes.ch/coinstuff/coins-ric.htm and under Genio types.
In this case the 'field mark' is the workshop letter so listings that follow RIC may not show all the possible choices (A, B, gamma). A tip: the letter A often was drawn more like we would H with the open top. In this case the OP saw K but there is a clue on the coin. The word ROMANI has an open top A so we might know to expect that same style in the mintmark. Unfortunately, there are coins where I believe the mintmark was cut by a different person than the rest of the legend. We need to realize that the Romans and Greeks of the day did not follow all our penmanship rules and be open to things like HIII being AN etc.
Doug: originally I thought the mint mark had an H, but when I looked closer it appeared to be a K. Interesting, I was wondering about that N. Thanks Doug.