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

High St., W. Duxbury: A.M. Thayer & Son after 1881. First Edition. Broadside dimensions 9 1/2 x 12 inches. Buff paper printed in black ink. Chipping and edge tears along folds and edges. A number of folds are separating and this fragile item should be tissue backed or framed. Many..... 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

Jena: Carl Zeiss. We are proud to offer a finely made articulated working model of a Carl Zeiss Jena Model Stativ II microscope which was originally manufactured in 1857. This model is in working condition and made by Zeiss but on a smaller scale. With the wood base, it measures..... More

[London]: E. J. Dent circa 1860. We are pleased to offer a E.J. Dent dipleiodoscope. Primarily made from brass (with lead weighting in the base) and glass. 83.6 mm wide x 52 x mm deep x 59.6 mm high. It is marked "E. J. DENT PATENTEE 431" on the smaller..... More

[ Roxbury, Vermont ]: Self published [ circa 1860 ]. First Edition. A manuscript document of Roxbury Vermont on a thick blotter like paper. 17 x 14 1/2 inches edge to edge. There are four large edge chips and some water damage affecting the content. The document includes 176 identifiable..... More

Paris: J. Duboscq. We are pleased to offer an early didactic instrument by the famed firm J. Duboscq of Paris. This instrument is a huge demonstration prism (6 cm on a side and 7.5 cm high) mounted on a large brass base. There is a knurled dial below the prism..... More

Nuremberg: J. G. Klinger [circa 1860]. A very nice example of an all original Klinger Nuremberg globe. The globe is 42.37mm in diameter and 50.13mm including the brass pinions on each end. Twelve hand-colored engraved gores. The original display box is 55mm wide, and 54mm tall. The box is constructed..... More

Jersey City, NJ: Self-published 1889. First Edition. One sheet of 15 x 10 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