<p>Scan from Johann Christoph Brotze's book Sammlung verschiedner Liefländischer Monumente. A better description (in German) may be availale on the source site (linked below) - the image name (except for m at the end) corresponds to ID on that site e.g. BM01129A means volume 1 (1. sējuma...), scan 129A.
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Feel welcome to replace this description with one describing content of this particular image
<bdi><a href="https://en.wikipedia.org/wiki/en:Johann_Christoph_Brotze" class="extiw" title="w:en:Johann Christoph Brotze"><span title="German artist and scholar (1742-1823)">Johann Christoph Brotze</span></a>
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University of Latvia Academic Library <a rel="nofollow" class="external free" href="http://www3.acadlib.lv/broce/">http://www3.acadlib.lv/broce/</a>