Joachim Ehlers, Vienna 1815
Not much is known of the builder Joachim Ehlers, but all the known instruments by his hand have elaborate and luxurious cases. This particular instrument was built in the time span of the Vienna Congress (1814-1815). The painting on the pinblock shows many Swedish flags. It is safe to assume that it was made for a Swedish high official. It is signed: Gezeichnet von Josef Rabel in Wien 1815.
The Ehlers in the Museo degli Instrumenti Roma of around 1825 has, instead of a painting on the pinblock, ornamented bronze fittings similar to the ones the Ehlers 1815 has on the case.
The miniature is by Thomas Hargreaves ca. 1815.