Connecticut, Proclamation, 1783

If you look closely at this broadside, you might see that the text at the top and bottom have light shadows---a faint double impression caused by an accidental bounce of the paper on the inked type

Faithorne, A perpetuall ephemeris (1655)

Although engraved and etched plates in books tend to be primarily of images, intaglio techniques can also be used to write text, as in this perpetual calendar. For more on how this calendar works, see Erin Blake's post "Happy New Year's E" in The Collation.

Gianicolo, Type specimen, 1529 (recto)

This specimen sheet features only a font of italic type, but in a visually attractive demonstration of its possibilities.

Gianicolo, Type specimen, 1529 (verso)

There is very little bleed-through apparent on this blank verso, although it's hard to tell if it is due to how this broadsheet was printed or how it was photographed.

Guyot, Type specimen, 1565

Specimen sheets are used by type-casters to show examples of the fonts they have for sale. This one shows work from François Guyot, a type-caster in Antwerp, and was used to sell his wares in England, as evidenced by the manuscript notes in English secretary hand. Careful sleuthing comparing these typefaces to those used in dated texts and to surviving records from the Plantin printing shop identified Guyot and the likely date of 1565. For more on those details, see this post from the Folger's

James I, By the King, 1611

This broadside uses gothic type (or black letter as the English often called it) for the main text of its announcement, as is typical for official English documents, with roman type setting off the names of the escapees.

Keimer, Elegy, 1723 (1r)

Because broadsides weren't typically bound into books but rather distributed as single sheets, they often have very high loss rates. This is the only known copy of Keimer's Elegy, which Benjamin Franklin describes in his Autobiography as having unusually been composed as Keimer set the type. This was the first work that Keimer published in America, and Franklin's first known printing job in Philadelphia.

Keimer, Elegy, 1723 (1v)

The back of this broadsheet shows the ink bleeding through from the front, as well as the small patches that have been made to repair the damage from being folded.

Slovacius, Allmanach, 1580

This almanac was printed as a single sheet; the damaged sections running across the sheet suggest that it was stored folded for a long period of time, probably helping ensure its survival.