For you Rogers fans, an interesting detail.
When we look over our sets and singles, we are often taking note of the parts used to make the assembly and then assuming dating on that basis.
Take at look at this Steve Maxwell video on a very unusual Rogers set.
Twin 14x18 bass drums
Twin 8x12 toms
14x14 floor tom
Dynasonic
Complete set of stands.
Note that Steve describes this as a purchase from the original owner who bought them in 1969. Provenance should be pretty good.
As Steve explains the kit (starting around 14 min 15 sec into the video), he eventually mentions the correct knobby unit to allow the hi-hat to be conveniently hung from the bass drum.
Remember, this is a 1969 kit. Look at the very cool cast knobby in the attached picture. Custom casting to fit right up tight to one of the lugs with only a 3-hole layout. This is a few years before the cast knobby units are generally in circulation on Rogers drums.
A rather neat detail given that the collets are all still machined and the floor tom leg mounts are still the two-piece units with a spline that were pressed together to join them.
Also notice the Rogers script logos on the toms is not in the usual location and the tom arms are the redesigned version with the very definite 90 degree upper section and somewhat modified bottom section of the swivel enclosure.
