Astronomy Astronomical Instruments 1811-20 Lot of 15 Lowry antique printsAstronomical Instruments. (Celestial Observations Astronomy repeating circle Throughton's Mural Circle equatorial instrument graduating circle zenith sector). Issued 1811 20, London, by Longman, Hurst, Rees, Orme, Brown and Co.. Engraved by Lowry. Lot of fifteen (15) detailed antique engraved prints. All are attractive and well preserved examples. Short video captures condition much better than words. Please watch prior to purchase to ensure a clear