5504 (55¢) Wire Sculptures by Ruth Asawa – Three Untitled Sculptures from 1958, 1978 and 1959
5505 (55¢) Wire Sculptures by Ruth Asawa – Untitled Sculpture from 1959
5506 (55¢) Wire Sculptures by Ruth Asawa – Untitled Sculpture from 1958
5507 (55¢) Wire Sculptures by Ruth Asawa – Untitled Sculpture from 1955
5508 (55¢) Wire Sculptures by Ruth Asawa – Untitled Sculpture from 1955, different
5509 (55¢) Wire Sculptures by Ruth Asawa – Untitled Sculpture from 1980
5510 (55¢) Wire Sculptures by Ruth Asawa – Untitled Sculpture from 1978
5511 (55¢) Wire Sculptures by Ruth Asawa – Untitled Sculpture from 1952
5512 (55¢) Wire Sculptures by Ruth Asawa – Untitled Sculpture from 1954
5513 (55¢) Wire Sculptures by Ruth Asawa – Six Untitled Sculptures from various years
a. Block of 10, #5504-5513

5514 (55¢) Innovation – Computing
5515 (55¢) Innovation – Biomedicine
5516 (55¢) Innovation – Genome Sequencing
5517 (55¢) Innovation – Robotics
5518 (55¢) Innovation – Solar Technology
a. Horiz. strip of 5, #5514-5518

5519 (55¢) Thank You – Rose brown background
5520 (55¢) Thank You – Olive background
5521 (55¢) Thank You – Slate blue background
5522 (55¢) Thank You – Violet background
a. Block or 4, #5519-5522

5523 (55¢) Woman Suffrage Centenary