Adriaan Beers: Dutch inventor and trademan!

Point taken! Possibly (one of) the ECT-LV-75 IS a LV-55 from about 1959, more on that to be expected soon.
About a ‘general’ LV-75…bear in mind that both Beers and Denonville were MAIN importers from Scania-Vabis
since the second half of the fourties and to serve their customers they carried a variety of stock…whereas
ECT for sure prepared their business with procurement of chassis and trailers earlier. Perhaps a subcontractor
was involved with ‘old’ stock (when Beers foresaw the introduction of a home-made Scania-Vabis-cab) chassis.

The registration (UB) remains with the chassis when sold and/or even technically moderated and/or changed.

A type-approval of a LV-55 and a LV-75 is likely, but a (by yourself) suggested “LV-86” it is doubtful as Beers
would benefit from the LB-76 in the 5 years in which Scania-Vabis managed to sell about 1.000 chassis a year.

Moreover there was no need for pushing the COE-market anymore as Europe changed a lot in abbandoning the
drawbar-trailer configuration to tractor-trailer.

Attached a LV-55, when needed a spec on the L55 is available