Spot The Difference if you can
These 2 US stamps look strikingly similar, but they are difference issues. The difference is slight, but they have different catalog numbers assigned to them.
EzStamp has Special Information & images to show you details such as this. The difference is in the Microprinting on the stamps just under the wing of the submarine. The first stamp, Scott # 3272 has the Microprinting “USPS” just below the wing of the submarine. The second stamp, Scott # 3374 has NO Microprinting.
To see the details, Bring up Scott # 3372 in EzStamp & click on the Special Information Icon (see red arrow on Screen shot below). This will show the Special Information Window in EzStamp with high-resolution images of the relevant details so you can easily identify your stamps. EzStamp has Hundreds of detailed images such as this. Just look for the Special Information Icon to be Activated in the main Screen of EzStamp.