| 1880 |
Thomas Rothkegel (b. 1840, d. 1911) started to work as a glazier in Falkenberg (Silesia) |
| 1896 |
The son of Thomas, Hermann (b. 1869, d. 1945) entered the school in Bresslau for his examination for the master craftsman´s diploma. |
| 1919 |
The son of Hermann, Johannes (g. 1905, d. 1994) started his training in his fathers workshop in Falkenberg. This was followed by some training outside his fathers workshop until 1923. |
| 1925-1934 |
After a one year as craftsman in his fathers company Johannes started his journyman years and went to Dresden, Quedlinburg and Cologne. |
| 1934 |
Johannes started his own workshop in Oppeln |
| 1941-1945 |
Johannes´s war service including a period as a prisoner-of-war with the British. |
| 1947 |
After returning to Germany he had a temporary job in Brunswick and then moved to Würzburg. |
| 1953 |
Johannes` son Michael (b. 1938) started his training in Brunswick |
| 1960 |
Michael attended glazier master school.
Michael is second from left below, together with two company craftsman.
|
| 1972 |
Michael became a partner |
| 1978 |
Micheal started the production of lighting and became the head of the business. |
| 1986 |
Michael`s son Matthias (b. 1969) started his traning. |
| 1989 |
New premises built in Heuchelhof/Würzburg |
| 1994 |
Matthias qualified as master craftsman. |
| 1996 |
The glazier`s workshop moved to Heuchelhof |
| 1999 |
The administration moved to Heuchelhof |