A heraldic shield made of argent (silver), which is represented by its plain, smooth surface.
"Profile of the bottom of the Atlantic Ocean and adjoining land in New Jersey and Pennsylvania, showing…
The Renaissance Folding-Chair is a ribbed chair that is scarcely decorated and is mostly plain.
A city house in the country. A low house would be better suited to sitting alone on a hill.
"The American buffalo, or more properly bison, is an object of great importance to the hunters…
The plain wooden railing post is a staircase railing that is formed of rows of upright posts.
Block diagram showing the flood-plain of a river, with ox-bows and marginal streams and in section,…