It says in the eBay lot that the drilling of the brake and cage holes were done aftermarket, doesn't it??
The bit that looks like a sheared mech hanger is a bit weird mind.
It is a track frame which has been crudely modified for riding on the road for the following reasons
The drilling for the front brake is off centre and higher than it normally would be;
Holes in the down tube indicate an attempt to fit bottle cage bosses;
The crude attempt to allow additional clearance for an inner chainring;
A chopped off rear mech hanger has been welded and sudsequently ground off again, as evidenced by the residue of weld on the lower edge of the drop out.
It is a track frame which has been crudely modified for riding on the road for the following reasons