I own an 1899 Zimmerman autoharp. Unfortunately these wonderful instruments have not been recognized for their true worth. They are "the original autoharps" and should be worth much more than they are. If they were guitars of similar quality and historical value (ie. a Martin New Yorker) they would be worth many thousands of dollars. Mine, which is in very fine condition is worth $80-$100 dollars. Be assured, however, one day they will be discovered and there value will shoot through the roof. Right now be pleased by the fact that you own a very important piece of American musical history...
$100
$100+.
Consult an appraiser to determine the value.
100
100-400 USD
100-5000 USD
1971; value could be between 100-1000 depending on the exact model and specifications.
1959; 100 USD
Made in 1921. Value range 100-500
100-300 or so
100-1000 and up depending on specifics
$100 in top condition. sales@countrygunsmith.net
100-1000 USD
100-300 USD
@1928. Value range from 100-1000 USD
To calculate the present value of 100 pounds in 1973, you would need to adjust for inflation. Using an inflation calculator, the approximate present value of 100 pounds from 1973 would be around 1,170 pounds in 2021.