France 1840/1860 - Letters / envelopes

39 letters/envelopes from the second half of the 19th century,
Some with stamps and almost all with an identifying stamp on the back
They are letters addressed to a private individual, folded as they were in that era, which was the way mail was sent; some have remnants of a wax seal that tore the letter when opened (see photos)
With very beautiful handwriting
A very beautiful collection