This page is to make a record of information from Fred Dyer, from Liverpool in the UK:
Fantastic information Fred. Thanks so much! I didn't know that Selmer ever sold instruments made by Kohlert.
I have a clarinet by Kohlert (Krastice) which is a Selmer Gold Seal I bought brand new in 1950 when I was demobilized from the army after national service.
The gold seal clarinets were made for Selmer London just at the end of WWII. I had a choice of a Boosey & Hawkes with poor keywork or the Kohlert. (£52in1950!) The Gold Seal had drop forged solid nickel keywork and came complete with a wooden mouthpiece. (At that time I was playing Brilharts on clarinet and my saxes, which a friend in the merchant Navy brought me from Arnold Brilharts in New York. The gold seal— a disk about 12mm in diameter, has “Selmer” molded into it. The gold disk is on the barrel and the bell of the instrument. It is a nice wooden clarinet and I enjoyed playing it. They also did some flutes with a gold seal disk but I don't know who made them.
Trust you find this interesting. I greatly enjoyed reading your treatise etc on clarinets. Keep up the good work. I still play 1st clarinet in the Heswall Concert Band (on the Internet) and I also run a band called Swing Era (also on an internet site). You will see my picture there if you look. Still modest as well as good looking at 84 this year!