C.H. Stoelting Optical Illusion Set 1930

Set of vintage C.H. Stoelting Optical Illusion set of cardboard cards and various stimuli. Set A-K missing F. antique medical, antique psychology, antique science

4 fold out eye test charts pre 1930 and other various optical test materials on card stock by C.H. Stoelting. The Snellen Test Letters, named after the Dutch ophthalmologist Herman Snellen, are a stan

Antique early lie detection parts and accessories including: Pneumograph Sumner's intact hoses with metal end plates by C.H. Stoelting, 1930's. 51 wooden mouthpieces for spirometer by C.H. Stoelting,

Lot of various eye-motor coordination measuring tool including; Whipple Mirror drawing apparatus by C.H. Stoelting 1930 with 4 mirrors and 2 test measures 17"x 12"x 9" Stylus for precision steadiness

Antique chronometer appears to by C.H. Stoelting pre 1930 with tambour needle, 2 gauges in 10 increments with case. Named after the French physiologist Charles Jacquet, this device allows researchers

JANE BONELLI Two [2] OPTICAL ILLUSION ABSTRACT PAINTINGS, set od two, oil on canvas., signed on verso. Size: 24 x 24"

Group of vintage misc. rods, clamps and cast iron stands by C.H. Stoelting & Chicago Apparatus Co. circa 1930. 20 pcs. with some labels. Measures 3" to 8" each. antique medical, antique psychology, an

Antique Victorian Optical Illusion Gold Pendant. Unique estate piece. Set in 12kt rose gold with a faceted crystal. Crystal has an air bubble that reflects in the other facets. Measures 1.25 inches in

Made by J. & E. Stevens. Internally set angled mirrors create the optical illusion that each deposited coin is three coins rather than one. Made of Cast Iron with Glass Mirrors. 6 1/2" tall. Very Fine

Made by J. & E. Stevens Company circa 1890's of Cromwell, Connecticut. Internally set angled mirrors create the optical illusion that each deposited coin is three coins rather than one. Made of Cast I

Lot of mental measuring tools. Chicago Apparatus circa 1903 Calipers, C.H. Stoelting Tapping board, and Columbus Calipers circa 1930. Also includes two metronomes, one LaSalle Extension University Chi

Antique pre-1930 voice keys for measuring auditory reaction time experiments. antique medical, antique psychology, antique science antique medical, antique psychology, antique science

Vintage C.H. Stoelting Goddard Form Board Test Form L, IQ kit wooden case with 10 wood puzzle pieces and figures. Measures 15" x 10" x 2. vintage medical, vintage psychology, vintage science

Includes vintage memory measuring tools from circa 1930. Dearborn Langfeld type Tachistoscope by C.H Stoelting memory apparatus Finger Maze (Miles) C.H. Stoelting copper wire stapled to plywood base f

Richard Anuszkiewicz (American, born 1930). Orange and green optical Art illusion serigraph silkscreen on paper. Housed in clear frame. Unsigned. Measures 26 1/2 in x 20 1/4 in. Good condition, frame

Christine Viennet ( French, Norwegian, born 1947 ). This three dimensional optical illusion on a two dimensional surface features luscious home made chocolate candy set on a porcelain dish plate with

Richard Anuszkiewicz (born May 23, 1930) is an American artist known for his contributions to Op Art, a style of visual art that uses optical illusions to create the impression of movement or other vi

1921 FINE, 1927 FINE, 1928 VF, 1929 XF, 1930 VF, 1931 XF, 1932 VF, 1933 VF, 1934 F-VF, 1935 VF, 1936 XF, 1936 DOT VG-F, 1942 AU, 1937 GEM BU, 1938 XF, 1939 BU, 1940 AU, 1941 CH BU, 1942-1944 GEM BU, 1

1921 FINE, 1927 FINE, 1928 VF, 1929 XF, 1930 VF, 1931 XF, 1932 VF, 1933 VF, 1934 F-VF, 1935 VF, 1936 XF, 1936 DOT VG-F, 1942 AU, 1937 GEM BU, 1938 XF, 1939 BU, 1940 AU, 1941 CH BU, 1942-1944 GEM BU, 1

Includes 2 pairs of binoculars, Illusion Kaleidoscope, Dr. Freud's Therapy Ball, and Anriya Director Set. IMPORTANT: Before bidding, please read the terms and conditions. When you registered for the a

Early "System Telehor" Television Set, 1930 By "TeKaDe". Telehor universal receiver, consisting of bearing block with axle and phase adjustment, two lamp-holders with aperture, two Osram Telehor AU te

\"Listed artist Victor Vasarely French optical illusion art in an abstract presence. This geometric opt art provides a differing look at different angles. Each angle provides another aspect to this ar

Chinese Export Porcelain European Subject 'Optical Illusion' Plate Unmarked. 9 3/4 in. diam. Chinese Export Porcelain from the Tibor Collection

body in excellent condition and good working order, with matching unnumbered nickel Elmar 3.5/5cm, FODIS rangefinder no.31914, two yellow filters, close-up lens, all in unique leather case with compar