File:1930 callsigns 5.jpg
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![File:1930 callsigns 5.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f4/1930_callsigns_5.jpg/381px-1930_callsigns_5.jpg?20240808071649)
Size of this preview: 381 × 599 pixels. Other resolutions: 153 × 240 pixels | 305 × 480 pixels | 489 × 768 pixels | 651 × 1,024 pixels | 1,750 × 2,750 pixels.
Original file (1,750 × 2,750 pixels, file size: 2.05 MB, MIME type: image/jpeg)