There were no Queen Victoria commemorative coins issued by the Royal Mint.
There were a great many commemorative tokens, medallions, medalettes and souvenirs produced for a great variety of occasions.
About the only thing they have in common is that they are round.
A commemorative coin is made in honor of something, like a historical event or a famous person.
Please check your coin. 1897 was the year of Queen Victoria's Diamond Jubilee or 60th year on the throne. Sixpences were not issued as commemorative coins. You may have a Sixpence like souvenir token or medallion.
The Battle of Jutland was in 1916. Can you provide some information about the coin like a country or mint name, the year of minting, what the coin is made from, its diameter, what is inscribed on the coin, etc?
Gold plating by itself isn't worth much, so it really depends on the metal content of the coin. Commemorative coins like that don't have much value unless it's made of a precious metal.
The Theodore Roosevelt 1985 66th anniversary coin is not made of silver; it is a commemorative coin made from a copper-nickel alloy. It was issued to celebrate the anniversary of Roosevelt's birth and is part of a series honoring U.S. presidents. While it may have a silver-like appearance, it lacks the silver content found in other commemorative coins.
The term for a coin that sounds like an odor or smell is a "scented coin." Scented coins are specially treated with a coating or infused with a fragrance to give off a specific smell. These coins are often used for commemorative purposes or as collectibles, adding a sensory element to numismatics.
Commemorative is five syllables divided like this: com-mem-o-ra-tive.
About $30 in silver scrap. Most commemorative "coins" like that aren't worth much of anything to collectors beyond their value of the metal they were struck in, of course if you have a buyer of Rose Bowl memorabilia they might pay a bit more.
Timbuktu is a place name, not a personal name like Victoria, Regina, etc.
Sounds like you have a 1903 commemorative medal.
You need to provide much more information. That motto appears on all coins of the current British Commonwealth and was on all coins of the empire when Victoria was queen. Please post a new question with the coin's denomination, how worn it is, and what country issued it. If there's no country shown on the coin it's probably from Britain.
The 1858-1947 Max Planck commemorative coin doesn't have a set price as it depends on factors like condition and rarity. You may need to check with numismatic experts or browse online marketplaces to get an estimate of its value.