He's asking for the oldest "brand" not blend. Or... is he? Oldest brand being made today? Could be blends he's asking about. A combination of both? Neither?
So, that parsed here, apropos of possibly nothing, is my response. Kapp Brothers, precursor to Kapp & Peterson were tobacconists in 1865. Might be the oldest brand. Unknown if any blending recipes made it into the 20th Century, much less the 21st.
Tom: I didn't bother deciphering but, it could have been attempt at being humorous. Rebellious? Ah, who cares!