SBJ1 - DB1 - DRB1 are all the same exhibit.
Di Cook named it SBJ1 because he wrongly assumed Stan Jones had found it. It was the changed to DB and later DRB1.
Unfortunately, these three [four or five] exhibit references, which 'the damned' who 'claim them' to/as 'being' the same 'parker hale silencer' in 'all instances', is 'false', and 'amounts' to 'dishonest activity', which the 'worst Criminals' 'working' within different parties of 'the overall criminal justice system', 'pull off', 'frequently...
'Irrefutable evidence' has 'now been sourced'(uncovered) 'to confirm' that 'the following items' of 'evidential value' were 'all silencers', or 'the self-same silencer' which was presented as 'having been contaminated' with 'all manner' of 'scientific' or 'forensic - waffle'..
'Know the truth' - here, 'I can now reveal' / 'provide' and 'identify', 'all of the items', which 'at one time' , or 'another', were 'faked' in order to present 'a misleading script', capable of 'fooling' the 'court' , which 'tried the matter' with the view [intension] of 'trying' to 'convict' an innocent defendant' of 'five murders' of 'family members'...
'SBJ/1' - [ `Bamber owned silencer', consisting of 'only 14 internalised baffle plates'
'SJ/1' - as above
'DB/1' - ['flake', 'sticky', 'jam-like' 'blob' which 'David Boutflour' on his own admission, that 'he' had used 'a razor blade' to 'scrape it' from 'the outer surface' of 'the silencers', 'casing'..
'CA/1' - the 'silencer' that 'her brother' ['David Boutflour`] had 'originally recovered from, a 'so called', 'gun cupboard at the scene', [the previous month] on the '10th August 1985'..
'CAE/1' - as above, at 'CA/1'
'DRB/1' - the 'actual silencer', which 'David Boutflour' had 'used a razor blade' to 'enable him', to 'scrape' [the item] `DB/1' [the 'flake of blood', 'sticky', 'jam-like', 'blob'], from 'this silencer'..
The items, (listed above) were / are 'not' references to 'a Silencer' which just so happens to be the very same silencer (in all instances). There was only 'two key silencers' [`SBJ/1'] that was once referred to, as exhibit 'SJ/1', which 'Essex police', 'its experts' [from the lab', and] 'the relatives`,' tampered with' [and, of course] `they all 'conspired to pervert the course of justice' in 'pursuit of financial reward' and 'improved reputation'