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I got it off the historic apples of North Carolina site. However, it could all be from the same mistake or confusion.
I just looked for other descriptions and found:https://northstarorchard.com/fruit_we_grow/swiss-limbertwig/: “Moderately-tart with an excellent complex, spicy, fruity flavor. Has a firm, moderately breaking texture. This variety originated with the Swiss settlers in the Cumberland Mountains. Unknown date of origin. Ripens in mid-October.”
And I got my scion from 39thparallel who described his as having great flavor. (and here is a link to his picture): https://39thparallel.com/wp-content/uploads/Swiss-Limbertwig.jpg
Anyways, I don’t think I will be sad if it has great flavor regardless of what it is.