Partly agree, Zarf. On the sign I can agree, signs being usually intended to be read at glance. On letters and envelopes, examining an envelope should note things like colour, stamp, if sealed or open, and if open, what is its content. and on both, examining should note, for example, the graph (or typeset) ink colour.
Reading an envelope, this can be both realm of examine or reading, because usually on an envelope is written the sender (on back) and the receiver (on front)
Generally I assume that the adventurer hasn’t 40/20 (20/10) sight, like Chuck Yeager, and reading is a close range thing. My understanding of scope is that the player’s position re. thing on the location is… uh, abstract ? I mean, he can be near a desk or far from it, but when reading a note, the position is assumed to be near the desk. but for examining said note, is not necessarily nearby enough to read its content.
let’s visualize a bit:
in a study, X SOFA (that is, something not so nearby the desk), X DESK, X NOTE, READ IT you can visualize our PC looking to the desk from some distance, noticing that on it is a note, noticing, say, that there’s some writing and is roughly A5 in size, and moving nearby the desk, read what is writing on it.
Sorry for the long and winded (because I don’t handle english so well, being NOT my mothertongue…) explanation of my “design philosophy”, (or is a coreography ??) so to speak, and
Best regards from Italy,
dott. Piergiorgio.