Thanks for the update idrougge. Here's my analysis on this last batch (as per the filenames you gave) :
New candidates
Extras v1.2i (1987)(Commodore)[380706-05].adf
Install v2.05 r3.8 (1992-02-05)(Commodore)[367943-01].adf
Workbench v1.2i r33.56 (1987-04-27)(Commodore)[A500][317608-03][m].adf
Workbench v1.2i r33.53 (1987-04-03)(Commodore)[A2000][380724-07].adf
Workbench v1.3 r34.34 (1990-12)(Commodore)(SE-FI)[317796-04][a].adf
Extras v3.1 (1994-07-06)(Escom)(DE).adf
Workbench v3.1 r40.16 (1994-07-06)(Escom)(DE).adf
Storage v3.1 (1994-07-06)(Escom)(DE).adf
Locale v3.1 (1994-07-06)(Escom)(DE).adf
Fonts v3.1 (1994-07-06)(Escom)(DE).adf
Verified dumps
Extras v1.3 - Basic 1.2 (1988-09-07)(Commodore)[317788-01][a4].adf
Extras v1.3 - Basic 1.2 (1988-10-24)(Commodore)(DE)[317790-01].adf
Extras v1.3 (1988-09-07)(Commodore)[317788-01][a5].adf
Extras v2.1 (1992-12-04)(Commodore)[370168-01].adf
Extras v2.05 (1992-01-09)(Commodore)[367824-04].adf
Fonts v2.1 (1992-12-04)(Commodore)[370169-01].adf
Install v2.1 (1992-12-04)(Commodore)[370166-02].adf
Locale v2.1 (1992-12-04)(Commodore)[370170-01].adf
Workbench v2.1 r38.32 (1992-12-04)(Commodore)[370167-02].adf
Workbench v2.05 r37.28 (1992-01-09)(Commodore)[367813-03].adf
Possibly modified disks
AmigaFonts v2.05 (1992-01-09)(Commodore)[367825-03].adf
Extras v1.2 - Basic v1.2 (1987-04-27)(Commodore)[380706-09][a3].adf
Extras v2.05 (1992-01-09)(Commodore)[367824-04][a].adf
Workbench v1.3.2 r34.28 (1988-10-24)(Commodore)(DE)[317791-03][m].adf
Workbench v2.05 r37.28 (1992-01-09)(Commodore)[367813-03][a].adf
Install v3.1 (1994-07-06)(Escom)(DE)[m].adf
Bad disks
AmigaFonts v2.05 (1992-01-09)(Commodore)[367825-03][b].adf
Regarding the ESCOM DE set, I marked all the disks but Install as verified.
Thanks idrougge, chart updated here
http://amiga.workbench.free.fr