Can you still spend a 1 dollar silver coin?

Answer 1

Yes, but the real question is WHY? A genuine silver dollar dated 1935 or earlier is worth at least $17 to $20 for its silver content alone, and could be worth much more if it's a collectible coin.

If you're using the term "silver" dollar to refer to the copper-nickel Eisenhower and Susan B. Anthony coins minted in the 1970s, the answer there is that these coins have no extra value and still turn up in change once in a while.

Anthony dollars in particular are completely interchangeable with modern brass Sacajawea and Presidential dollars, so you can use them in vending machines or transit fareboxes. You can spend them in stores, too, but most clerks have never seen one and confuse them with quarters because the two coins are almost identical, which is the reason that the Anthony dollar failed in the first place.