Rectangular glass block
1900-1980
Three triangular keyway slotted mahogany blocks
Two rebated mahogany blocks and seven steel screws
Cylindrical block with four vertical equidistant holes
Block with inclined ends, mahogany, brass
Wooden Test Tube Blocks, X 4
1900-1980
Wooden Test Tube Blocks, X 4
1900-1980
Wooden Test Tube Blocks, X 4
1900-1980
Hand-cut curved wood block for rotary press
UK5 solar array diode block
Block of gamma-ray protection glass
1897
Electrical connector
1930-1970
Printer's illustration blocks illustrating a series of electron micrographs of the intima of blood vessels
Rubber block holding 11 glass test-tubes
Early hollow glass building block
Concrete block made from refuse, Colombia
1980-1989
Scribing block
Desk note paper block of imitation amber catalin
1948-1960
Block of slender wooden matches, United States, 1902
Two brass pulley blocks by Adams
1762
Wooden block used in rabbit ear chamber research
1950-1980
Wooden printing block
Wooden Test Tube Blocks, X 4
1900-1980
(Tapering) lead glass block
1990
Kofler block for determining melting points
Nozzle block
Triangular mahogany block with triangular butterfly screw
Joly photometer with ground glass diffusing blocks
Rectangular glass block
1900-1980
Semi-circular glass block (slightly chipped)
1900-1980
Block of RW 26 glass irradiated at one end, 1968
1968
Fifteen sample blocks of carbon compound
Trimming block for the Sorvall Porter Blum MT2 ultramicrotome
T.C.C. block type 1 mfd. Condenser
4 printing blocks showing x-rays of feet
Concave iron block with crystal quartz attached
Block of wood from North Eastern Railway
Joisting block (Mitre template)
Shoemaker's blocking pliers
Cylindrical wooden block with groove in its.
1880-1900
Contactor block from the incomplete electric clock movement
1840-1877
Two examples of typical flexographic printing blocks
Three wooden, engraved blocks
Five 'Scaffixer' blocks, Jones' patent 1907 & 1910
Two tapered pulley blocks each with 3 pulleys and 2 hooks
1752