[PROJ] Help in setting proj parameters for an old map

[aborruso]

Hi,
I have discovered these fantastic public domains maps
https://legacy.lib.utexas.edu/maps/ams/italy_50k/

If you open a map you can read [1] that the projection is a Lambert Conic
Conformal and you have also the lat_0, lon_0, the Spheroid, the x_0 and the
y_0 of the map.

For a [2] LCC projection the lat_1 parameter (first standard parallel) is
required and it's possible to set also a second standard parallel (lat_2).

First question:

- what's the right lat_1 for this map?
- is it better to set also the lat_2? And if it's yes, what's the right one?

Thank you

[1
]https://user-images.githubusercontent.com/7631137/73595475-78b75080-4519-11ea-9c79-1968126c136d.png
[2] https://proj.org/operations/projections/lcc.html



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