Blowback- Card 4
Remember, if you haven't used our clues pages yet, check out the instructions here to learn how they work and how to best utilize them.

Clue 1
You'll want to start by translating the text.
Clue 2
In English, it reads: "Measure what is measurable, and make measurable what is not so."
Clue 3
This text is telling you what to do with the differently sized letters.
Clue 4
Analyze each line separately (except the 3rd line, which has no oddly sized letters).
Solution
βFinal Solution: If you arrange the too-large letters from largest to smallest, the two lines read:MARCUS ELDER

Clue 1
Well, it must be an alphabet, but it's not a language I recognize...
Clue 2
...at least not a language of this planet.
Clue 3
The moon will illuminate your path.
Clue 4
Search for a few moon-themed scripts.
Solution
Final Solution: This is the "Moon" alphabet, developed by William Moon. The plaintext reads: "The Ourorobos has a mole in the CIA, he goes by the codename Manticore."

Clue 1
Well, Sole is Italian for "Sun..."
Clue 2
Eight lines... and eight planets.
Clue 3
But they may not be the planets' names in English.
Clue 4
If 1 is the first letter in the solution, then the first letter is A.
Solution
The planets, in Italian, are:
Mercurio
Venere
Terra
Marte
Giove
Saturno
Urano
Nettuno
Taking the letters marked by numbers and ordering them numerically gives us: AUSTIN.

Clue 1
Just like the other stamps, this will be more useful later.
Clue 2
They are also solved in a similar way.
Clue 3
What are these words in Italian?
Solution
"Pear" and "Brooms" in Italian become "Pera" and "Scope" which, combined, become "Periscope."