Chronogram year notation

Many coins and medals issued during the 17th and 18th centuries are inscribed with a unique date notation called a "chronogram." I don't know the meaning of the Latin inscription, but if you add up the capital letters in the inscription, you can find out the year the coin was issued.

So how do we calculate this? First, we need to understand Roman numerals, which are also used on American gold coins minted in the 20th century.

On the left is the Eagle gold coin, which began issuing in 1986. On the right is the popular "Ultra High Relief Gold Coin." The numbers MCXLXXXVI (1986) and MMIX (2009) are engraved on the bottom right of the coin, respectively.

Now, the basics of Roman numerals:
M = 1,000 D = 500 C =100 L =50 X =10 V =5 I =1.

Also, if a smaller number comes after a larger number,
CX =110 LX = 60 XI = 11 VI =6, and so on.

If a smaller number is followed by a larger number,
XC = 90 XL = 40 IX =9 IV =4.

Now let's look at the Nuremberg 6 Ducat gold coin.
Let's try to extract the capitalized alphabet from the Latin inscription engraved on the surface on which the goddess is depicted.

XDIVXCLIXMVVI

Next we add them up.

10+500+1+5+10+100+50+1+10+1000+5+5+1

The total now stands at 1698.
If you look at the side depicting the cityscape, you will see that the year 1698 is engraved on it.

Well, I also came up with a coin with a chronogram, so I'd like to introduce it to you. I don't understand Latin at all, so I've written it in English. The coin is this very famous gold coin.

In English, this is a 100 Corona gold coin called “Lady in the cloud”. If the following inscription were to be put on this gold coin,

LaDy In the CLouD Very beautIfuL goLD CoIn

Now, if we extract only the capital letters written here,

LDICLDVILLDCI

Adding this together gives

500+50+1+100+50+500+5+1+50+50+500+100+1

Amazingly, this matches the year 1908, the issue year of this gold coin!
Why don't you consider making a chronogram like this?

Note: Strictly speaking, the Latin spelling at the time used a "V" instead of a "U."
The inscription written in English this time does not follow this convention.