I've had this one for a while but never realized it was a variety til just now as I was preparing to list it on eBay:
CONSTANTINE I. 307-337 AD. Æ Follis, (22mm, 4.35 gm). London mint. Struck Late 312-313 A.D. CONSTANTINVS P F AVG, Laureate bust right, cuirassed / SOLI INVI-C-TO COMITI, Sol radiate, stg. right, head left, chlamys spread behind, r. raised, l. holding up globe. *//PLN. RIC VI 284var.
Basically a variety of 284 but with an unlisted legend break, with Sol standing right rather than left or facing, and with the chlamys spread behind rather than over left shoulder. I notice that Zach has one on his research website.
For those interested it will be here at 7:15 pm-PST this evening:
http://search.ebay.com/_W0QQsassZseleucus_nicator
Voz