Time capsule probably isn’t the best terminology here as I’m not sure that this is what was originally intended, but it has transpired to be something like that.
These lead plates are written in Latin and they were walled into the foundation stone of St. Nicholas Church (Nikolai) during the Gothic reconstruction which started in 1513 and finished in 1535. At the time, this was a Catholic church, but in 1539 it became a Protestant church as part of the Reformation sweeping Europe and it remains that today.
I’ve had to go to AI to try and give me any indication of what it says on the lead plates and it came up with:
“…in nomine … patris et filii…”
(“In the name of the Father and the Son…”)
and a section below that seems to mention something like:
“…dominus … in … ecclesia…”
(“…lord … in the church…”)
And:
“…memoriam … perpetuam…”
(“…perpetual memory…”)
and
“…requiescat in pace…”
(“…may he rest in peace…”)
Whatever it said was likely really planned to be known only to God…..