Results for "Physics"
Sylvia H. Williams
- Date: 1983
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
Office of Educational Research
- Date: 1983
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
Horton H. Hobbs, Jr. Feeding Crayfish
- Date: 1982
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
Removal of Air Conditioners from NPG
- Date: 1982
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
Nadya Makovenyi
- Date: 1982
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
Repairs to West Range of A&I
- Date: 1983
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
NMAH Volunteers Working in Costumes
- Date: 1985
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
Legani Kaunda at National Museum of African Art
- Date: 1980
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
Preliminary Digging Outside Smithsonian Institution Building
- Date: 1983
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
Ted Juchno
- Date: 1981
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
Helen Donaldson at her desk
- Date: 1986
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
Tree Removal from the Victorian Garden
- Date: 1982
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
