No.
There was no Postal Commemorative Society in 1786
It's copper-nickel not silver. They sell for $3.00-$5.00.
The only commemorative dollar struck that year is a 1983 Los Angeles Olympiad "Discus Thrower" coin. A proof "S" mintmark coin in the grade of PF-69 has a current market value of $35.00.
Yes
Can you please supply to me the type of Silver Dollar you have and its mint state. You must be in possession of a commemorative coin.
Current value is about $7
The only commemorative dollar struck that year honored the Marquis de Lafayette. Its retail value could range from $200 to $400 depending on condition.
1 Dollar "Peace Dollar" 1921-1935 Commemorative: End of World War I Silver (.900) - 26.73 g - ø 38.1 mm so 90% is silver of the 26.73gm total weight
90%
Current average retail value is $29.00
The only US half dollar struck in 1922 was the Commemorative Grant Memorial Half dollar and values for uncirculated examples about $100.00