This is indeed the case. Thiede's description of the error is not clear, but perhaps relates to his request to view Gr. 18, which turned out to be a tiny unrelated scrap. Pickering thinks the association should not be abandoned so quickly. 17 fragments, which Roberts labeled correctly.
Verso listings are correct.
Four variant readings, most of which Stuart Pickering has discussed more adequately than Thiede. Thiede gives the history of dating the fragment, starting with its acquisition by the Rev. Charles B. Huleatt at Luxor in 1901. Hunt, together with Grenfell, assigned manuscripts which came from codices to third century or later. 200, based on paleography. He mentions the Greek Minor Prophets Scroll, now called 8HevXIIgr, published in DJD VIII, Ed.