No such thing as a "strike mark" but U.S. coins do have Mintmarks. For Morgan dollars, they are on the reverse just above the DO in DOLLAR.
The mint mark on any Morgan dollar is on the reverse above the letters DO in dollar.
If it has one, it's on the reverse above the DO in DOLLAR.
The mint mark (if it has one) on all Morgan silver dollars is on the reverse of the coin just above the letters "DO" in dollar.
1921 Morgan dollars unless they have an exceptional strike and are virtually perfect generally sell for about their silver melt value, about $25 at current melt value.
The mint mark position on all Morgan silver dollars is located between the wreath and the DO in DOLLAR. No mint mark = Philadelphia S = San Francisco O = New Orleans CC = Carson City D = Denver (1921 only) Demand for silver dollars fluctuated a lot so there were many years when one or more of the mints didn't strike the coins.
Not always, no. If it was minted in Philadelphia, then there is no mint mark.
The mint mark on any Morgan dollar is located on the reverse (tails) side, near the bottom, just above the letters "do" in the word "dollar."
If it has one, it's on the reverse above DO in the word dollar.
If it doesn't have a mint mark, that means it was made in Philadelphia.
The mint mark on a Morgan dollar (if any) will be found on the reverse of the coin under the wreath between the "D" and "O" in "DOLLAR".
The mint mark on all Morgan silver dollars are located on the reverse of the coin near the bottom. Look above the "D" and "O" in the word DOLLAR
The mint mark on Morgan silver dollars can be found on the reverse (tails) side, near the bottom, just above the letters "do" in the word "dollar."