CENCO circa 1950. About 10 inches tall, and occupying about 6 1/2 inches square on the table, this CENCO Scientific plaster case of the heart is in nice condition (a few minor breaks, and chips but otherwise quite nice).  These didactic models were used in classrooms to give students a...... More

[ Rochester, NY ]: Bausch and Lomb Optical 1903-1904. A mostly brass Bausch and Lomb (B&L) microscope. The base has the characteristic B&L circular disk with serial number 43899 which allows us to date this instrument to 1903/1904. The body tube is not marked, nor is the horseshoe base. The..... More

circa 1875. We offer a nice example of a camera lucida, all brass, with a glass prism at the end. Closed, it measures 10 1/2 inches long by roughly 3 inches wide. It expands to 21 inches long by loosening the knurled nuts and pulling each of the two nested..... More

1931. 8 1/4 inches in diameter, aluminum and plastic construction. Three plastic cursors present and with some yellowing. Metal washers on both sides present, one with a hairline crack. The finish on the rule is quite nice and what minor soiling there is would clean up nicely. No case or..... More

New York, N.Y. J. B.Colt Company [ circa 1922 ]. [8] + 24 plates + [2] pages. Page numbers are irregular. Binding is brass round head fasteners for easy removal and addition of pages. Well worn, soiled, thumbed, etc. First 8 pages are introductory material, then 24 plates (two in..... More

London: Dawbarn & Ward, Ltd. 1906. 94, [4], 16 pages. 8vo. Brown cloth with black titling. Endpapers covered with advertisements. Penciled "1906" on the cover. The last 16 pages are a catalog of "Utility books and periodicals" supplied by Dawbarn & Ward, Ltd. Color frontispiece, occasional foxing (mostly to endpapers)..... More

New York: American Telephone and Telegraph Company 1953. First Edition. 263 pages. Original blue printed paper wrappers. Spine slanted, lightly soiled and worn at extremities. Upper spine corner bumped tearing spine paper and with some creasing. A good copy. Entire issue offered of the Bell System Technical Journal Volume XXXII..... More

Cambridge, Massachusetts: Self-published 1987. First Edition. Typed letter signed from Noam Chomsky to "Evelyn" (Evelyn Fox Keller) on MIT watermarked paper regarding the Italian publisher Eleuthera books: "My friends Amedeo Bertolo and rosella Di Leo, of Eleuthura books in Italy, wrote me that they'd contacted you about some possible collaboration and..... More

not stated: Frederick H. Evans circa 1900. First Edition. Grey paper mount 22.5 x 30.5 cm and stamped "FHE" in a monograph form. Tipped on platinotype photograph print is 15 x 19.5 cm. Evidence of glue ghosting where tipped on at two corners. Inscription on verso in hand of Frederick..... More

London and Glasgow: Richard Griffin and Company 1854. xii, 329, [2], 32, 8 pages. 8vo. (5 x 7 3/4 inches). Publisher's red cloth gilt, with blind-stamped decorations front and rear panels. Chromolithograph frontis (foxed). Tissue guard damaged. Corners bumped, partially unopened, soiling and minor bubbling to the cloth with darkened..... More

Jersey City, NJ: Self-published 1889. First Edition. One sheet of 10 x 15 inch bristol board. Black ink on white paper with pasted on photograph of the item. Several old cellotape repairs, margins significantly chipped. Marginal notes in red and black ink. Design witnesses William Miller and Eduard Wolff. His..... More

Pittsburgh, Pennsylvania: Self-published 1889. First Edition. One sheet of 10 x 15 inch bristol board. Black ink on white paper, with paper repair and small chip upper left. The assigned application serial number was 311,732 and it was received by the US Patent Office (USPTO) on May 22, 1889. The..... More