DKW Dynastart brush set

Make what you will of this listing !

Among my garage loft clear out of brush sets left over from the sale of my business in the 1980s I found this dynastart set in a box from an after-market manufacturer called BVO ( Best Value Obtainable. )  I have no contemporary catalogues from or information about this company.The box lid only says "For DKW dynastart". No date or which model. My hunch is pre Sonderklasse, but maybe not?

The brushes are very similar to the Bosch design fitted to late 50s/ very early 60s Messerschmitt but the brush dimensions are slightly different and the tags are of a different style also the Messerscmitt set up was 4-brush if I recall correctly.

Note: though dispatch details recorded as 2 days I will almost always post either the same or next day following receipt of payment.