Marine compasses do not use declination because charts are used with magnetic bearings.

I find a Lensatic compass to be a novelty compass not only because it does not offer declination, but its operating system is far less easy to use on a map than the Silva type systems.

As a field compass sighting it is fine, but map to field, field to map work is far easier with a baseplate compass.

Declination adjustment to me is a requirement as again it makes a baseplate compass a sure bet to use. No messing about with subtraction or addition of declination...no confusion, no mistakes.

About the only thing that can be stated for sure is that "Silva USA" compasses marketed by Johnson Outdoors are NOT made by Silva Sweden. Suunto/Recta are the likely source for most Silva USA branded compasses....only because they have county of origin as Finland. Johnson Outdoors can have anyone willing to make a compass brand it "Silva" as they own the trademark in the US.