Receiver unit from the ENIAC computer, 1943-1945
1943-1945
Hydraulic dental chair, Philadelphia, United States, 1925-1935
1925-1935
Letter from George Washington to his dentist, United States, 1795
1795
Bilgram Automatic Bevel Gear Cutter
circa 1900
Haemacytometer, Philadelphia, United States, 1900-1980
1900-1980
Tinfoil phonograph
1880
Barrett Desk adding listing machine
1930-1939
Stormer viscometer by Arthur H. Thomas Co.
circa 1928
Chevalier Jackson-type aspirating bronchoscopes
1920-1950
Syringe, nickel-plated brass
1913-1920
Silver bleeding bowl
1765-1775
Sewing machine, head of a treadle, button-hole type
1868
Bottle of silicate cement powder
1950-1965
Brass hydrometer set
1810-1830
Accu-Lok radiosonde. For NOAA - National Service, US Dept. of Commerce.
Transit compass
1840-1842
Accu-Lok radiosonde. For NOAA - National Service, US Dept. of Commerce.
Lighting Flash Torch
Packet of "Moyco" finishing strips by the J. Bird Moyer Co.
1965-1975
Doriot No. 4 handpiece
1917-1930
Skull saw
1801-1900
Student microscope on cast iron stand
1900-1925
Accu-Lok radiosonde. For NOAA - National Service, US Dept. of Commerce.
Bottle of "Muco-Seal" impression compound sealant
1950-1965
Compound monocular microscope by R. & J. Beck
1875-1880
Catheter, steel, with stylet
Lo-cate Microsonde, model 1524-511, serial No. 5376, including sensors
Brooks variable self and mutual inductor 90691
Compound monocular microscope by Sidle and Poalk
1871-1900
Demonstration microscope by Acme Optical Works
1873-1900
Chemist's Scale
1890-1910
Dental stopper
1862-1868
Bottle of Muco-Seal denture fixative powder
1950-1965
Demonstration microscope by R. & J. Beck
1871-1880
Hydrostatic steelyard balance by Henry Troemner
1910-1950
dental excavator
1880-1910
Sorby microspectroscope in case
1871-1900
Membership card of the Franklin Institute of Philadelphia
1981
Oliver test types in holder
1940-1970
Monocular polarising microscope by R & J Beck
Botanic microscope (for dissection) in wooden case
1871-1890
Dental Treadle Drill used in Chiropody
1885-1920
Compound monocular microscope with radial substage
1880-1870
Combined eidograph and geometric drawing instrument patented 1858 by William Wythes and made by Queen & Co.
1858-1880
General Foods Profit Calculator
1940-1941
Throat atomizer
Atomiser, made by Whitall Tatum Company
Two packets of 6 "Revelation" inverted cone plain cut burs for straight handpiece
1950-1965
Thermocouple calculator with centigrade to Fahreheit converter by Leeds Northrup
1952-1960
7 sets of 4 porcelain posterior crowns on card
1905-1925