File talk:H. J. Helden, Ferrara distrutta dal terremoto del 1570.jpg

"H. J. Helden" author?

The source for this authorship is a 2010 Italian article which captions the image as:

H. J. Helden, Ferrara distrutta dal terremoto del 1570 (Zurigo, Biblioteca Universitaria)

(H. J. Helden, Ferrara destroyed by the 1570 earthquake (Zurich, Zentralbibliothek Zürich))

However, the Library of Zurich's entry for this illustration (Ms_F_19_f154v_f155r) doesn't credit H. J. Helden. Outside of the Italian article (and copies of Commons relaying that info), I couldn't find any corroboration for, or mention of an "H. J. Helden". It might be best not to credit the illustration to that name based solely on that single article. — Avelludo 19:43, 13 December 2023 (UTC)