Concert in Riga. 1923. 50 years since the "First General Latvian Singing Festival" (1873-1923).
Оригинала фотографии Unknown author<span style="display: none;">Unknown author</span>
Файл: <span class="int-own-work" lang="en">Own work</span>.  Collection:  <a href="//commons.wikimedia.org/wiki/User:Kalnroze" title="User:Kalnroze">Kalnroze</a>