It's called 'Wheat Ears', with King Carol I of Romania. Various issues between 1894 and 1903.
Romania Scott designs A17 and A24. If it is lilac then it's 1894. If it is unwatermarked then it is one of the many forgeries of the era.
The only thing is that I don't remember any of them to be imperforated. Not impossible, though, since Romanian Post of the era was unreliable in terms of keeping their records straight ...
Here is a link to a lot containing a few stamps of the era:
https://www.okazii.ro/romania-1900-...e-a191929766