Thai Baht of Rama V (1901-1907); Date?

Unsure what date this is; a Thai friend of mine said she couldn't find any date numerals in the R.S. calendar on this coin

Hello , it look there a line with "unknown" date on the coin form, maybe it's this one .

https://fr.numista.com/catalogue/pieces13746.html

Here a example :

http://www.ebay.fr/itm/1901-THAILAND-SIAM-RAMA-V-1-BAHT-UNDATED-SILVER-COIN-Y-34-VF-ORIGINAL-TONED-/121881818848?hash=item1c60b8f6e0:g:Ab8AAOSwMvtZP53q

Greetings

Quote: "Mattei2b"​Hello , it look there a line with "unknown" date on the coin form, maybe it's this one .

​The line "unknown" is for coins with unreadable dates (because of worn or damage).

The date should be on the reverse at the bottom under the lettering but on your coin, it seems there is no date and that is something else than an unreadable date because of worn or damage.

Quote: "Essor Prof"​

Quote: "Mattei2b"​Hello , it look there a line with "unknown" date on the coin form, maybe it's this one .
​
​

​​The line "unknown" is for coins with unreadable dates (because of worn or damage).
​
​The date should be on the reverse at the bottom under the lettering but on your coin, it seems there is no date and that is something else than an unreadable date because of worn or damage.

​Is it possible that the date numerals have worn off? They are quite small from other coins of this type I've seen online.

I've seen that on these coins the date is very thin. But I wonder if it's possible that only the date would be worn off completely without any trace. Your picture is not sharp enough to see but I don't see that much worn on your coin so it would be strange the date would be worn off completely.