In my opinion, I think the original artist(s) placed them there on purpose. maybe to disinform or maybe some to transmit a message in the mist of the noise, so to speak.
Just like the work of Davinci and Homer to put the example, maybe someone did this work of art as a symbol that this event 911 would lead to the destruction the economy.
In the session where the C's explain to Laura the beast of the apocalypse, the remarks about the world monetary system are there even with the mention of "Blasphemous names" to "In god we trust" also in the bill.
The fact that Abraham Lincoln on the penny is the coin of less value and people's values are corrupted by the money making culture, is also an interesting thought.
(Quotes from 16 October 1994)
Q: (L) So, the ten horns represent units of value, so we are talking about money here. What are the blasphemous titles on his heads?
A: In God we trust.
this item came up on that session where the questions about the apocalypse took place.