The hoops and hooks...
The hoops are solid brass. I took them to a local plating place and had them look them over. They said they show no indications of ever been plated. Could these have come from a different model Slingerland? I've been through the Cook Book and don't see any hoops put out just brass.
The hooks are a combination of brass with plating removed (nickel), brass with almost all the nickel removed and brass with mostly chrome. I can't tell if they are a combination of belly and slim, since I've never seen slim....
If the '56-'59 'Looped S' badge is legit, it's been removed, substituted, or original re-set with the original aluminum grommet. I took it too a cabiniteer (like that one? Cool Dude) and he confirmed mahogany/poplar/mahogany), and was pretty sure the finish had been varnished or lacquered (and a pretty fair job done, too), which would explain the badge removal and re-setting.
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Pat