Was a comment but here in the text too now...
Asked by a few what it is.... Canon P-208II. Small and light weight. Run on the Mac and Windows logging PC no problem with the software they include. Linux was/is still messing with, no Canon support for it..... It creates/operates as a standard TWAIN scanner. I find able to feed in a stack of cards pretty quickly too... and it creates either a jpg for each side (as here, or can be TIFF or GIF images) or each card saves both front and back as a single pdf file. Scans BOTH sides at the same time. 600dpi so plenty of resolution.
You can feed in those double up cards too, just unfold before scanning.
It will handle up to A4, so started to process all the licence files too.
Just a section of first trials from latest batch from buro... maybe you are in there? Hope to process all cards over time.