word usage - Is it technically correct to describe normal figures and text figures as upper case and lower case numbers? - English Language & Usage Stack Exchange
Alphabet - Upper and Lower Case - Set
Fit to Print: Split-Level Storage Explains "Upper-Case" & "Lower-Case" Letters - 99% Invisible
Monster Alphabet Lower Case Download - Etsy
Lowercase Alphabet Templates | Activity Shelter | Alphabet letters to print, Alphabet writing, Lower case letters
Definition and Examples of Lowercase Letters in English