Years	Decal	Shell	Mask	Stripes L to R	Stripe Width	Mini
?-1961-1962-?	yellow? player's #	maroon	gray	none
?-1964-1968*	none	maroon	gray	none
1969	maroon 100 inside yellow,  football shaped oval	maroon	gray	none
1970-1971*	none	maroon	gray	none
1972-1987+	yellow trojan head	maroon	gray	none
1988-1991#	yellow trojan head	maroon	maroon	none
1992	yellow, new style trojan head	maroon	maroon	none
1993-2000#	yellow trojan head	maroon	maroon	none
2001-current+	yellow trojan head	maroon	gray	none

Notes:
* same design
# same design
+ same design

USC 1961	USC 1966	USC 1969	USC 1972-1987
USC 1992	USC 2000	Coming Soon USC 2001