07-12-2022, 10:14 PM
(07-12-2022, 08:59 PM)davidjackson wrote: You are not allowed to view links. Register or Login to view.I would say that a lot of cipher letters from your time would have ended up in state or noble family archives, so would have had a higher probability of surviving than most correspondence of the era.
It is very possible that you are right that it is more likely that they survive. I obviously haven't investigated what non-enciphered correspondence survives so I have no means of estimating.