I have a pair of Cornwalls. I understand they were called Cornwall IIs due to the vertical components. I can't find the speaker serial numbers, but the components are:
K-33-J woofers (#1186 & 1191) 220119 on rim
K55V midranges (#2050 and 2040) with K-1000 horns
K77 tweeters (#110 & 111)
I understand that the code on the rim dates the woofer to 1961.
I bought them used in 1983. I replaced the grill cloth, removed the paint, and stained them. Otherwise, i believe that everything is original and pretty much in perfect shape.
I'm asking $900 for the pair.