Even if the seller claims it's real, it turns out 
fake sometimes. Sequential number says 
nothing. Everybody who sells cels know about 
that. It's not against anyone, but I once asked 
a seller  f the cel is real, and he said it's real 
production cel used in anime. But the seller is 
selling only fancel, even fancel kit, fancel 
darwing offer. One guy told me the cel is not 
used in the series, so I told him about that. But 
he said then it's a special cel, more valuable 
than ordinary cel. My friend advised me not to 
bid. I think somepeople here told the seller not 
to try deceive innocent people. Then he re list 
the cel saying 'ok, it's a fancel, bid if you like it'
The seller still on ebay. I hate that guy, he lied 
me.