$100
My Smith Corona typewriter is worth about 2,500 its antique
In 1905, the cost of a typewriter varied depending on the brand, model, and features, but typically ranged from $50 to $100. This would be equivalent to around $1,500 to $3,000 in today's money when adjusted for inflation.
The first typewriters costed an average of $250. They were originally invented by Christopher Sholes. He invented the typewriter in 1868 and also introduced the QWERTY system to typewriters, which was later used in computers.
The value of a typewriter depends on the model of the typewriter as well as the age and condition, but they can vary anywhere from $20-2,000. If you're lucky, antique stores and flea markets may have typewriters that you can get for a steal...provided the owner doesn't know what they have.
$273,880
Just picked one up today at Grammercy Typewriter in downtown Manhattan- $225. I highly recommend this place.
9000
You can easily buy a good 60's to 70's era electric for $20-$50 on eBay. A fully restored manual typewriter can cost $200-$500. A historic machine like a Blickensderfer might be worth more. An unusual version of a common office typewriter (with special symbolic keys, or accents) can push the cost up to close to $1,000.
About 15 to 20 pounds.
Much like the typewriter.
A manual typewriter is the typewriter that was used before the Electric Typewriter was invented.