"letter case" is correct and usable in written English.
It is used to describe the difference between upper case (capital) letters and lower case letters. For example, this sentence contains a mix of upper case and lower case letters: "The Cat Sat On the mat."
The writer once tried to sell a letter case that belonged to William Ewart Gladstone and had his named stamped on the cover.
for the Advancement… The writer once tried to sell a letter case that belonged to William Ewart Gladstone and had his named stamped on the cover.
The New Yorker, October 12 , 1957P. 187 The writer once tried to sell a letter case that belonged to William Ewart Gladstone and had his named stamped on the cover.
Joseph Breckenridge, a spokesman for the Florida division of the United States Postal Service, said spores were found in the "throwback" slot of a letter case that would contain mail for American Media and other nearby buildings on its route.
By Joyce Warren The New Yorker, October 12 , 1957P. 187 The writer once tried to sell a letter case that belonged to William Ewart Gladstone and had his named stamped on the cover.
The Georgia, Trebuchet and Verdana typefaces showed comparable processing times regardless their letter case.
Perceptual priming for words was minimized by using different fonts (i.e., Arial, Comic Sans, Time New Roman, Verdana), different letter cases, and different letter sizes.
The Republican partisans cheering Fitzgerald's prosecution of a Democrat have forgotten his other red-letter case in this decade, his conviction of Scooter Libby, Dick Cheney's chief of staff.
The Guardian's victory in the Prince of Wales letters case has reinforced a profound constitutional principle.
"Having taken account of the supreme court judgment in the Prince of Wales' letters case, and the particular content requested, we are now withdrawing from legal proceedings.
Articles published in the form of letters, case reports, reviews, and conference abstracts were excluded.
