[B. Dudley]

That should be a trap gun by how you describe it.
The actual skeet guns would be marked so on the barrels and would have a bird with clay pigeon engraved on the lock plates.

I cannot comment on factory standard features.

I have had one example of each in my shop for work before. Both the trap and skeet guns had ejectors, wadsworth BTFE and vent ribs. The trap had double triggers and the skeet a hunter one. Both were regular frame guns.