41. [Empty RSD/PSD stacks] Publication: [196-?] Subject(s): Library MaterialsAfrican AmericansNational Library of Medicine (U.S.). Reference Services Division.
42. [Weinstock shelving the RSD/PSD stacks] Publication: [196-?] Subject(s): Library MaterialsAfrican AmericansNational Library of Medicine (U.S.). Reference Services Division.
43. [View of the RSD/PSD stacks] Publication: [196-?] Subject(s): Library MaterialsNational Library of Medicine (U.S.). Reference Services Division.
44. [RSD/PSD stacks] Publication: [196-?] Subject(s): Library MaterialsNational Library of Medicine (U.S.). Reference Services Division.
45. [Staff in the Interlibrary Loan area] Publication: 1962 Subject(s): Libraries, MedicalAfrican AmericansNational Library of Medicine (U.S.). Reference Services Division.
46. [A man operating the mobile camera in the RSD/PSD stacks] Author(s): Pruyn, Peter N. Publication: [196-?] Subject(s): Library MaterialsMicrofilmingNational Library of Medicine (U.S.). Reference Services Division.
47. Mobile camera in book stacks Publication: [196-?] Subject(s): Library MaterialsMicrofilmingNational Library of Medicine (U.S.). Reference Services Division.
48. [George Queen operates the RSD/PSD mobile camera] Publication: [196-?] Subject(s): Library MaterialsMicrofilmingNational Library of Medicine (U.S.). Reference Services Division.
49. Mr. Parkam using microfilm camera Publication: 1962 Subject(s): MicrofilmingAfrican AmericansNational Library of Medicine (U.S.). Reference Services Division.
50. [Microfilming a book with the mobile camera] Publication: 1962 Subject(s): MicrofilmingAfrican AmericansNational Library of Medicine (U.S.). Reference Services Division.