What did the Washington 1982 silver dollar sell for originally?

Please look at the coin again. It's a HALF-DOLLAR, not a one dollar coin. But to answer your question. The Pre-issue pricing from the Mint was $8.50 for proof coins and $10.50 for uncirulated coins. Regular issue price was $10.00 for proof and $12.50 for uncirculated. Both coins are currently valued at $8.00.