Period

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Illustration from 'Architectura Curiosa Nova'
ARP23A10_138

Illustration from 'Architectura Curiosa Nova'

Illustration from 'Architectura Curiosa Nova'
ARP23A10_137

Illustration from 'Architectura Curiosa Nova'

the Lavochkin-Gorbunov-Gudkov LaGG-3 Soviet fighter aircraft of WWII.
ARP18A04_425

the Lavochkin-Gorbunov-Gudkov LaGG-3 Soviet fighte...

The Germans arrive at Maikop to find its oil ablaze.
ARP18A28_151

The Germans arrive at Maikop to find its oil ablaz...

Lead chambers for large-scale production of sulphuric acid
ARP07104_460001205

Lead chambers for large-scale production of sulphu...

Sectional view of lead chamber process
ARP07104_460001207

Sectional view of lead chamber process