Using data from old catalogues [Risolto]

Is it allowed to use images/data from an old (1910) Dalton&Hamer catalogue in order to fill many holes existing in Numista catalogue?

Tricky.

Generally, copyright lasts 70 years beyond the death of the author (not the publication date).

https://theartssociety.org/sites/default/files/The%20Arts%20Society%20Copyright%20Guidance_0.pdf

Dalton died in 1922
https://britnumsoc.org/images/BIOGRAPHIES/A_to_E/Dalton-R-1854-1922-GMO-001.pdf

Hammer in 1930

https://britnumsoc.org/images/BIOGRAPHIES/F_to_J/Hamer-SH-1859-1930-GMO-001.pdf

Idolenz

Dalton died in 1922
Hammer in 1930

So? Can we use here data & pics from their catalogue?

If the copyright runs out after 70 years after the death of the longest living author, you're 25 years on the safe side☺️

Yes, photos from such books can be added. Not the best images I would reckon, but if it is only one availlable…

Also, please check when the copyright runs out - it is different for each country.