New York City: Junior Astronomy Club, American Museum of Natural History 1935. 8 5/8 x 8 5/8 inches. Printed blue paper. Revolving disc housed in a die-cut frame with metal center grommet. Overall light wear, a few creases, in good working order. Two previous owner names penciled on rear. Very..... More
![Item #29335 [volvelle] STAR EXPLORER [rotating star/astronomy chart]. Dorothy Bennett](https://kuenzigbooks.cdn.bibliopolis.com/pictures/29335_1.jpg?width=320&height=427&fit=bounds&auto=webp&v=1710944762)
London: Longmans, Green, Reader & Dyer [circa 1871]. viii, 336, 28 (pub cat), [29]-32 (index) pages. 12 mo. 6 5/8 x 4 1/4 inches. Publisher's original cloth. Spine plain with blind tooling. Title stamped in gilt on front cover. Front flyleaf lacking. Previous owner name penciled on front pastedown. Original..... More
![Item #29244 [volvelles] A Grammar of General Geography for the Use of Schools and Young Persons...](https://kuenzigbooks.cdn.bibliopolis.com/pictures/29244_1.jpg?width=320&height=427&fit=bounds&auto=webp&v=1701380608)
Massachusetts: Aaron Palmer 1843 [ but circa 1845 ]. A circular slide rule. 10 15/16 x 11 inches x 3/8 inch thick constructed of two layers of book board. The upper board with a cutout volvelle in a circular form attached to the rear book board with a metal rivet..... More
![Item #20008 Palmer's Computing Scale [ Full Size ]. Aaron Palmer](https://kuenzigbooks.cdn.bibliopolis.com/pictures/20008_1.jpg?width=320&height=427&fit=bounds&auto=webp&v=1334081699)
Troy, N.Y. W. & L. E. Gurley 1899. Roughly 5 7/8 inches square. Cellulite volvelle with brass grommet. Surface scuffing from use. Front with volvelle, rear with great illustration of surveying instrument and table below. Very Good.
A nice advertising piece for surveying instrument manufacturer Gurley, and useful besides..... More
![Item #29233 [volvelle] Cox's Stadia Computer. W., L. E. Gurley](https://kuenzigbooks.cdn.bibliopolis.com/pictures/29233_1.jpg?width=320&height=427&fit=bounds&auto=webp&v=1701380609)
Camden, NJ: Henry Whitall 1871. sixth edition. 15 1/4 inches in diameter. Constructed of a circular cardboard base with black and white printed instructions ("Directory of the Starry Heavens") affixed to the verso, and colored illustrations of the constellations affixed to the recto. Attached to the base is a revolving..... More
![Item #29336 [volvelle] A Movable Planisphere of the Heavens at Every Minute. Henry Whitall, Rev....](https://kuenzigbooks.cdn.bibliopolis.com/pictures/29336_1.jpg?width=320&height=427&fit=bounds&auto=webp&v=1710944762)
