Est. $50-$75
Est. $50-$75
Est. $50-$75
Est. $100-$150
Est. $75-$125
Est. $50-$75
Est. $60-$90
Est. $100-$500
Est. $15-$300
Est. $30-$50
Est. $20-$30
Est. $30-$50
Est. $20-$30
Est. $20-$30
Est. $30-$50
Est. $30-$50
Est. $25-$50
Est. $50-$75
![Alexander Von Humboldt CDV Photos: Friedrich Wilhelm Heinrich Alexander von Humboldt[a] (14 September 1769 - 6 May 1859) was a German polymath, geographer, naturalist, explorer, and proponent of Romantic philosophy and science. He was](https://p1.liveauctioneers.com/7411/410762/228342039_1_x.jpg?height=280&quality=70&sharpen=true&version=1775247712&width=280)
Est. $50-$75
Est. $500-$10,000
Est. $20-$200
Est. $50-$1,000
Est. $50-$100
Est. $300-$500
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