Ein runden oder gevierdten Thurn

31st of 38 engravings of artillery weapons, etc., from Fronsperger; 2 artillerymen directing fire from 6 cannon at square and round towers in background. 31st of 38 engravings of artillery weapons, etc., from Fronsperger; 2 artillerymen directing fire from 6 cannon at square and round towers in background. Folio; most engravings yellowed or trimmed close. Leichtenstein-Hauslab Collection, 1951. title provided by cataloger