It is, without question, not the "big one". However, there is at least one other comparatively minor DDO known for the date/mint if you wish to look into it. Unfortunately, and very possibly due to personal shortcomings, I still cannot say one way or the other based upon the provided photos. This site would make a fine first stop, and is an excellent overall resource for learning about the different types of doubling as well as the minting process as a whole... http://doubleddie.com/228401.html Variety Vista and CopperCoins are also excellent resources.
