this fake is currently being offered on eBay by a German seller. I think he probably does not know it is a fake, as he does not seem to sell many ancient coins, mostly modern stuff.
https://www.ebay.com/usr/geldmopConstantine I
A.D. 326
GLORIA SAECVLI VIRTVS CAESS; Emperor std. l. on couch by cuirass, lower part of body draped, holding sceptre, offering globe with phoenix to Caesar stg. in front of Emperor, trophy across left shoulder; panther crouching at feet of Emperor.
RIC VII Rome 279