Mss.B.B61_B

Becke, F.: From Boas. 1923 Mar. 6

Becker, Achim: From Boas. 1931 Apr. 6

Becker, Achim: From Boas. 1931 Mar. 20

Becker, Carl H.: From Boas. 1929 Dec. 23

Becker, Carl H.: From Boas. 1930 Oct. 2

Becker, Carl H.: From Boas. 1941 Aug. 15

Becker, Carl H.: To Boas. 1941 Oct. 25

Becker, Howard: From Boas. 1934 Mar. 28

Becker, Howard: From Boas. 1934 May 2

Becker, Howard: To Boas. 1934 Mar. 29

Becker, Howard: To Boas. 1934 Mar. 30

Becker, Howard: To Freyer, H.. 1934 Mar. 29