Things that I have found inside other things.
Inside this issue of The Comic Reader #45 (Jan. 1966):

…I found this letter from the then-new editor, hoping to pick up a new subscriber:

Inside this issue of The Barks Collector #34 (Summer 1986):

…I found this note to retailers, detailing wholesale costs and information:

Mixed in with a pile of AMRA: Swordplay & Sorcery fanzines, of which this copy of issue #70 from 1982 is a sample:

…I found this rejection postcard:

This person just got told he wasn’t good enough to be an amateur. Dude, harsh.