Yeah, I assumed that you were just missing them, so I checked Michel and then Yvert, and I don't see them, either.
According to east-europe-philatelics.com, the following were unissued:
Quote:
West Hungary 1921 Mi 15 fillér on 250 AND 350 on 50-fillér not issued f&b 001. [sic]
By the way, that site is asking 150 euros for the two stamps.