This is the only info I have on Kirsch:

Erich Kirsch GmbH & Co. KG was located in Müllheim, south of Freiburg, from 1933 to 1998. They were a wholesaler of bicycles, kits, parts and accessories, as well as automotive parts. Their upper tier/special line of racing frames was called "Cerasso".
The company filed for bankruptcy towards the end of 1998.