What is the value of a Morgan silver dollar 1897 o ms 60?

Morgan dollars were struck from 1878 to 1904 and in 1921, at five different mints. Without knowing the dates and mint marks it's impossible to put a value on any individual coin let alone a full roll.

There's a link to Morgan dollar prices below that may help you to evaluate the coins on your own, given that you know the grade. The mint mark position is above the DO in DOLLAR on the back - Philadelphia coins from that period don't have a "P" mark however.

Of course whatever you do only handle the coins by their edges, preferably wearing cotton gloves or similar, to avoid transferring any oils from your skin.