1940-P Lincoln Wheat Cent 1-DO-003 (I Hope)

i hope to claim that I have found a doubled die (if so - it's my first). 1940P-DO1-003. the scan of the entire coin is as high of a resolution as I can get, and still be a small enough file to attach here. the enlarged date, is hopefully got a high enough resolution to help confirm. in hand the 9 has a definite second line along the right side long curve, and another clear "shelf" line along the left side small curve. slightly higher than seen on "copper coins" advanced search site. the "L" in liberty looks identical, and the "WE" also looks identical. can anyone help confirm. thanks.