1935 Mercury Head dimes are common date coins. Most are only valued for the silver. Today it's $1.32.
The U.S. Mint did not issue a Mercury Dime in 1910.
W isn't a standard mint mark for any Mercury dime. 1935 isn't a rare date, so the value is at least $2 for the silver content, and up to $7 in uncirculated condition for Philadelphia, $25 for Denver, and $15 for San Francisco.
Mercury is the name of a dime only.
There are 2.25 grams of silver in a 1935 silver dime. It is made of 90% silver and 10% copper.
This design is almost always called a "Mercury" dime because the winged Liberty cap worn by Miss Liberty resembles the had worn by the Greek god Mercury.
All dimes minted from 1916 through 1945 are the same and are called Mercury Dimes, or also called Winged Liberty Head dimes. I have added a link to a picture of a 1936 dime. The 1935 would look the same expect for the date
If it's a U.S. dime with a date of 1944, it's a Mercury dime.
The first MERCURY dime was struck in 1916
A 1937 Mercury head dime is common, most are valued just for the silver about $3.00.
The 1938 Mercury dime is common. Average circulated coins are $4.00.
The Mercury Dime