Tough one to see in this late stage, but there are die markers all over the place on both sides. Doubling is on LIBERTY, which is fairly visible, and the date but almost invisible in this stage so I added some arrows.
The Spike Head is unlisted so I will re-work the photos and submit them to JC at Cuds-on-Coins for his review.
1943-D
Lincoln Wheat cent doubled die DDO-002 Stage-D, Spike Head





