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41Published 1931, July 26.Subjects: “…[Labour and Socialist International.]…”
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42Published 1964, September 5-6.Subjects: “…[Socialist International., Anniversaries.]…”
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43Published 1928, August 5.Subjects: “…[Labour and Socialist International.]…”
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44Published 1925, August 22-27.Subjects: “…[Labour and Socialist International.]…”
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45Published 1928, August 5-11.Subjects: “…[Labour and Socialist International.]…”
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46Published 1964, September 5-6.Subjects: “…[Socialist International., Anniversaries.]…”
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47by Funke Küpper, AlbertSubjects: “…[Labour and Socialist International.]…”
Published 1928, 11 augustus
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48Published 1925, August 22-27.Subjects: “…[Labour and Socialist International.]…”
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49Published 1925, August 22-27.Subjects: “…[Labour and Socialist International.]…”
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50
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51Published 1928, August 5.Subjects: “…[Labour and Socialist International.]…”
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52Published 1964, September 5-6.Subjects: “…[Socialist International., Anniversaries.]…”
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53by Bottema, TjerkSubjects: “…[Labour and Socialist International.]…”
Published 1928, 18 augustus
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54Published 1928, August 5.Subjects: “…[Labour and Socialist International.]…”
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55Published 1931, July 26.Subjects: “…[Labour and Socialist International.]…”
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56by Jordaan, L.J.Subjects: “…[Labour and Socialist International.]…”
Published 1925, 5 september
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57by Raemdonck, Georges vanSubjects: “…[Labour and Socialist International.]…”
Published 1923, 2 juni
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58Published 1964, September 5-6.Subjects: “…[Socialist International., Anniversaries.]…”
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59Published 1964, September 5-6.Subjects: “…[Socialist International., Anniversaries.]…”
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60
