Here's one you won't find by accident. Just a bit of doubling on the IN GOD WE but it's the only DDO
for this year so you only have to look in one spot when searching these.
Of note, there are a number of coins from this year with Machine Doubling
in this area so be sure to look for the split serifs on the E of WE.
1929-D Lincoln Wheat cent
doubled die DDO-001