The oldest speakers that I have owned are 1972 vintage Large Advents. I agree with the previous post except that the “custom” real wood veneer cabinets were not too bad looking. I have owned many pair since the mid 70’s and still find them to be quite good. one pair were restored/modified by Bill Legall from Millersound. He called the mods his “secret sauce.” They were remarkable! I also have enjoyed several pair of vintage Sansui speakers from the same era. They were made by Coral.in Japan and were quite good, especially the Alnico models.
I have also been fortunate enough to have heard the Deja Vu Western Electric builds in their VA showroom. I am so thankful that Vu offered to show them to me. By far the best sound I have heard in a showroom demo. They were powered by vintage Western Electric amplifiers (from the 30’s) which Deja Vu also rebuilds.