Bulgarian Life Guard Cavalry Squadron Officers, 1903, The Vinkhuijzen collection, New York Public Library. (Bulgarije. Die Offiziere der fürstlichen Leibgardeeskadron. In der Mitte der Kommandeur, flügeladjutant Oberst Peter Markow. (1903). )
<a rel="nofollow" class="external text" href="http://digitalgallery.nypl.org/nypldigital/explore/dgexplore.cfm?col_id=206">The collection assembled by H. J. Vinkhuijzen (1843-1910).</a>
before 1910 <div style="display: none;">date QS:P,+1910-00-00T00:00:00Z/7,P1326,+1910-00-00T00:00:00Z/9</div>
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