Who much is a 1779 to1976 sliver dallor?

Answer 1

1. SILVER, not "sliver"

2. DOLLAR, not "dallor" (just like the word appears on the back of the coin)

3. 1776-1976, not "1779" (just like the date appears on the front of the coin)

You have a coin minted as part of the Bicentennial celebrations. Assuming it has no mint mark or a D above the dual date, it's a regular circulation coin minted in huge numbers and only worth about $1.00 to $1.15.