Since no answer was received this is the information I got from the seller:
The figures were ordered in 1935 of a Mr. Loy from Munich/Germany. He was a chemist and private collector. The draughtsman was Ludwig Madlener also from Munich and the engraver Ludwig Frank from Nuremberg/Germany, the best engraver of tin-figures of the world. The figures are descended from an old collection of Vienna/Austria.
For your information.
Best regards - and wish you ALL nice Christmas!!!!
Sandor