BRIEF [O.A.] Young, James Carleton Author: Young, James Carleton Recipient: Haeckel, Ernst Dating: 30.04.1903
BRIEF [O.A.] Young, James Carleton Author: Young, James Carleton Recipient: Haeckel, Ernst Dating: 01.10.1903
BRIEF [O.A.] Young, James Carleton Author: Young, James Carleton Recipient: Haeckel, Ernst Dating: 09.04.1903
BRIEF [O.A.] Young, James Carleton Author: Young, James Carleton Recipient: Haeckel, Ernst Dating: 11.08.1903
ANSICHTSKARTE Young, James Carleton Author: Young, James Carleton Recipient: Haeckel, Ernst Dating: 01.10.1903