"Laensberg (mathieu) - Daily Almanac For The Year XI & The Year 1803. Liège, Barnabe, 1803."
LAENSBERG (Mathieu) - Daily almanac for the year XI & the year 1803, calculated by Mr. Mathieu Laensberg mathematician containing the fairs and markets, etc. Liège, Guillaume Barnabe, 1803; in-32 square, 72 pp., contemporary gray-blue binding, smooth spine. The Laensberg almanac, very rare, is one of the oldest almanacs. It has been published since 1625. Very rare. For new. Illustrated with 7 woodcuts.