‘Experimental’ historical pictures (exact matches)

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Mrs John Clerk Maxwell (neé Frances Cay) and her Son James
Mrs John Clerk Maxwell (neé Frances Cay) and her Son James
The Walker Engineering Laboratories at Liverpool
The Walker Engineering Laboratories at Liverpool
Martin-Marietta X-24
Martin-Marietta X-24
Experimental exhibition of the electric light in Trafalgar Square, London
Experimental exhibition of the electric light in Trafalgar Square, London
Lazzaro Spallanzani experimenting with the digestion of birds
Lazzaro Spallanzani experimenting with the digestion of birds
Great Panjandrum, the weapon that failed to work, World War II
Great Panjandrum, the weapon that failed to work, World War II
Cycle versus War-Balloon, the Experimental Chase on 30 August
Cycle versus War-Balloon, the Experimental Chase on 30 August
Her Majesty's Experimental Squadron
Her Majesty's Experimental Squadron