The x-ray images are attached. The top row: 10pcs 2sc5200 or 10pcs 2sa1943 from this lot, can't remember which is which. The bottom row: used original 2sa5200 and 2sa1943, 2pcs each, shown as a reference. The chips inside are of the same size - so transistors from this lot are most probably original. However, I haven't performed a full electrical test yet - so the actual mileage may vary.
chip-5-5mm.original