Basic piecing in a patchwork fragment from about 1850.
From an online auction.
A square in a square block alternating with plain printed squares set on point.
Same pattern 30 years later
The pattern is BlockBase 2375, a square inside another square,
one set of triangles in the corners.
Triangle Design from Woman's World in 1931.
Broken Sash from several sources.
Today the vernacular name (what everybody calls it) is
Diamond in a Square
Basic patchwork as in this glazed wool quilt from the
Connecticut Historical Society, dated 1815 by Lucy Arnold.
But really it is a square inside a square.
Dated 1832, from the New Jersey project
and the Quilt Index
If you alternate dark centers and light in the design idea called counterchange you get a familiar star effect.
Shenandoah Valley, Virginia
End of the 19th century crib quilt
The pattern was popular with piecers between 1890 and 1920.
Side by side
Alternated with plain squares
Sashed with corner stones
Here shaded differently in opposite corners to give a different shape.
Fat sash and mini-blocks in the cornerstones
Another variation: set as a medallion in the way the Welsh do. This one
for sale at Jen Jones's shop
Welsh quilt in the Lyon County(Kansas) Museum
Amish quilt from a Skinner Auction
A design idea the American Amish probably picked up from
their Welsh neighbors in Pennsylvania.
We call these Center Diamonds
Quilt about 1810-1840, Ipswich Museum Collection
from the Massachusetts project and the Quilt Index
Americans were not too inclined to do this kind of grand-scale geometry until later.
The above construction is rather uncommon in chintzes and toiles.
You can, of course, go on turning and adding more triangles to make
a square inside a square inside a.....
Same quilt as the 1850 quilt at the top of the page---a century later---