Thanks for the additional information. My kit has two different interiors. The 12" tom and snare have the re-rings with painted grey interiors. The kick has a natural wood interior with re-rings.
Indeed, the whole life-cycle of Autocrats was a transition cycle! Specs were changing constantly and never stayed the same for more than 2-3 years!
Thing is the Autocrat bass drums weren't painted, even when the toms and snares were.
In fact your kit - a late one - was supplied as standard with each drum having fittings coming from a different era! This is the reason why people may think later kits are made of orphans.
In 1965 in the typical 12/16/20 kit, the specs would be as follows:
12" - Early 60's spec (5 smaller lugs, 60's hoops, pre-int size, now painted) Model 567 replaced 575
16" - Late 50's spec (16 chunky lugs, 50's hoops, standard size, now painted)
20" - Mid 60's spec ('New' RM Clansman stlye lugs, standard size, 'New' RM mounts, bass drums were never painted inside)
In 1960 a new double ended (Mark 3) lug was introduced and only used on the 12 and snare. The lug had a single point, centre mounted machine screw to attach to the shell. The lug was dropped when the RM brand came out.
A new (Mark 3) die cast hoop was also introduced for 12" and 14" sizes. These hoops have smaller radius 'lug ears' that are solid, where earlier ones were hollow and more oval in shape (Mk 2) or Square (Mk 1). This style carried over to the flagship RM branded models.
At this time the 12" also shell went to pre-international size(!) and went down from 6 lugs to 5 and started to be painted. A big drop in quality.
compare the side-by-side toms on my website and notice the changes in:
lug shape
lug number
dampers
hoop lug-ear shape
also the change in shape of the floor tom leg mounts
look at the RM page for the fittings on your bass drum
In 1965 a new (Mk 3) bass drum lug was introduced, looking like a girl's waist. The 50's version was chunkier and had a thin neck rather than a waist. Also new mounting hardware was introduced, long rectangular plates with a collet in the middle for cymbal arms and bass drum spurs. This design was carried forward to the RM brand. At this time the bass drum also went from pre-international size to standard international size.
Over this period the original and best 3 ply shell with 1-ply re-rings was replaced with a 3-ply shell with 3-ply re-rings and finally a 6-ply shell with no re-rings and silver paint.