My 1993 had a cast steel lower, that was painted black, same with my 1990. The aluminum lower might be from a later year? The upper looks correct though...
Maybe it came off a dirt bike or CBR as Honda likes to use the same stem length, and diameter for everything from 1984 - 2017 (except for the RC51 SP2 of course)
Honda alloy triple clamps usually have the part's PCN cast into the bottom somewhere, e.g., "MT4" for a '90-'92 VFR750F, "MGB" for a '98-'01 VFR800Fi.
Those holes actually look smaller than the top, and the offset looks smaller (30mm vs 40mm?), too, so maybe it came off an earlier or sportier model? I don't recognise it, and I have many Honda triple clamps lying around... Never assume an eBay find is what the seller says it is!
Spent a few minutes on Google searching, and the earlier (pre-1990) VFR's had double bolt alloy lower triples, but don't quite look like that one. The dirt bikes do look similar, as they are also alloy with double bolts, but no matches. The CBRf2,f3,f4 etc bikes were single bolt, the 600rr bikes were double, but had way different spacing and offsets. I don't know much about the other brands of bikes from that era, but there might be a match somewhere.
Maybe someone found a combo that worked, or a parts guy at a junkyard got them mixed up, and doesn't give a flying eff that someone may get an un-useable part. The desription says "Black Aluminum" so I have no idea what their eyes are seeing....😕