Atlantic Telegraph Cable Souvenir, 1873
1873-1920
Lefebvre type clitograph, French, 1862
1862
Sterile procedural mat
2010-2011
Hand vacuum jar for vacuum treatment based on Beer's method
1880-1925
two steel dies
1825-1832
Compound prisms
1876
"Baby Cine" Posograph Exposure Calculator
1928
Surveyor's cross head
1900-1929
Super glue
Human skeleton, England, 1980
1980