There are 9 designs of indicia whose face value is thirty cents. Five of these designs are distinctive enough that they can be identified by examining the images immediately below. The remaining 4 designs feature a bust of Alexander Hamilton.
For a key to the Hamilton designs click here.

There are 9 designs of indicia whose face value is thirty cents. These indicia are found, collectively, on 27 Scott-numbered stamped envelopes and letter sheets. There are no wrappers with a thirty-cent indicium. Five of the 9 designs are distinctive enough that they can be identified by examining the images below.

Bust of Washington	design U22	You have identified design #UO22, printed in green on buff paper and diagnostic for Scott #U72, or printed in yellow-green on buff paper and diagnostic for Scott #U72a.
USA	design UC23	You have identified design #UO23, shared by Scott #UC53 (blue and brown on blue paper) and Scott #UC54 (yellow, magenta, blue, and black on blue paper).
Globe	design UC24	You have identified design #UC24 (Multicolor on blue paper) and diagnostic for Scott #UC55.
World map	design UC25	You have identified design #UC25, diagnostic for Scott #UC56 (Multicolor on blue paper).
Olympics 84	design UC26	You have identified design #UC26, diagnostic for Scott #UC57 (black on blue paper)

no (go to Question 2)	design U32	design U55
yes (go to Question 3)	design UO16	design UO24

Back of bust very narrow; labels parallel	design U32	You have identified design #U32, printed in black and shared by Scott #s U102 (white), U103 (amber), and U104 (cream).
back of bust broader; labels not parallel	design U55	Design U55 Scott Equivalents Scott # color envelope U204 black white U205 black amber U206 black cream U207 black oriental buff U208 black blue U209 black manila U210 black amber manila U336 red-brown white U337 red-brown amber U338 red-brown oriental buff U339 red-brown blue U340 red-brown manila U341 red-brown amber manila U336a yellow-brown white U337a yellow-brown amber U338a yellow-brown oriental buff U339a yellow-brown blue U341a yellow-brown amber manila U336b chocolate white U337b chocolate amber U340a brown manila

back of bust very narrow; labels parallel	design UO16	You have identified design #UO16, shared by Scott #UO29 (printed in dark red on white paper) and Scott #UO43 (printed in vermilion on white paper).
back of bust broader; labels not parallel	design UO24	You have identified design #UO24, printed in red and shared by Scott #s UO67 (white), UO68 (amber), and UO69 (cream).