I asked this question because in London in a shop of glasses I had heard a man (who looked like an Englishman) said "I need only one glasses" when the shop assistant offered him one more. Maybe it's not grammatically correct but it's acceptable for spoken language?
No. I can't imagine a native speaker saying this, unless it was to be deliberately silly or ironic. (Perhaps the man you heard was a foreigner cleverly disguised to look like an Englishman?)