Est. $6,000-$9,000
Est. $150-$300
Est. $55,250-$61,750
Est. $1,000-$1,500
Est. $400-$4,000
Est. $1,500-$2,000
Est. $3,000-$4,500
Est. $1,500-$2,500
Est. $800-$1,200
Est. $500-$2,500
Est. $2,500-$3,750
Est. $7,000-$8,000
Est. $100-$10,000
Est. $300-$500
Est. $1,200-$2,500
Est. $5,031-$6,540
Est. $50-$200
![Charles Babbage, "Father of the Computer" - Fascinating!: Charles Babbage[London, England], December 1, 1832Charles Babbage, "Father of the Computer" - Fascinating!ALSA 2pp autograph letter signed by British scientist and inventor Charles Babbage (1791-1871)](https://p1.liveauctioneers.com/6306/405133/224988661_1_x.jpg?height=280&quality=70&sharpen=true&version=1769636949&width=280)
Est. $5,000-$6,000
Est. $3,822-$4,968
Est. $25-$500
Est. $5,940-$7,164
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