As for the red numbers in the Gusen cards:
Maybe it is possible to have some additional examples and details in the help text?
The red numbers’ positions in the card is obviously not the only criterium.
In this card there is another (red) prisoner number in the upper right corner, whereas the red number in the middle is (probably) the one we should ignore.
My intuitive decision (according to the different handwritings) was confirmed by his other Arolsen documents.
I entered these three: 43057 (in red, his Mauthausen number), 13936 (his Dachau number), 7555 (edit: might be his Flossenbürg number, see below!) - I ignored 6277.
(This is just one example of scattered/mixed up red numbers. I had other cards similar to this one.)
[ edit 25.06.2024: Meanwhile the help-text has been adjusted accordingly! also see this discussion ]
Und noch eine Kleinigkeit am Rande: In der englischen Gusen-Zusammenfassung („What we know so far“) wird das Geburtsdatum fehlerhaft angezeigt. Die deutsche Version ist okay.
(Ist aber nicht wirklich wichtig.)
ein gutes Wochenende allerseits!
Alois HLAVAC
https://collections.arolsen-archives.org/en/search?s=hlavac%20alois%201911
on ushmm