They Had Different Intentions
From the look of things, the two time capsules were created for different reasons. The first one placed an emphasis on American sovereignty and George Washington. On the other hand, the second one was more focused on some of the wars and battles that the country took part in in the past century.
It Was A Poignant Touch
If you ask Humphries, he will tell you that the older time capsule was more poignant than the other. After all, it came with the copies of the Declaration of Independence. In an interview, he told Baltimore magazine, “When you pull that out, you literally feel what [the people] were thinking when they placed those items in that cornerstone. I think it’s revealing, too, that the word ‘Memory’ is engraved a bit deeper than all the rest of the words in the inscription on the original dedication plaque.”