1. TMK-1 (1935-1949)
Goebel and Hummel's "Crown Marks" display a logo with the initials WG inscribed underneath a stylized crown in honor of William Goebel, Goebel Company's founder. It's during this period that you also see the M.I. Hummel signature appear at the figurines' bases. This feature would continue into the 21st century.
2. TMK-2 (1950-1959)
The 1950s were characterized by Hummel's launch of their bee design marks. These stamps depict various differently styled bees sitting inside a V. The company actually changed the bee's shape and size every year from 1956-1959.
3. TMK-3 (1960-1972)
These "Stylized Bee Marks" that evolved through the 1960s and early 1970s are considered close variations of the original bee marks. Oftentimes, these marks include a written inscription - W. Germany - which denotes which region of the divided country the company operated in.
4. TMK-4 (1964-1972)
Alongside the 'Stylized Bee' variants are the TMK-4 markings. The only differentiating aspect between these markings and their concurrent TMK-3 series is the three-lined inscription written beside the mark stating © by / W. Goebel / W. Germany.
5. TMK-5 (1972-1979)
This 1970s series is referred to by collectors as the "Last Bee Mark" because it was the final series (for many decades) to include the company' infamous bee. The company began to showcase its name during this period and highlighted the Goebel brand by placing an illustrated bee above the last E in the company's title.
6. TMK-6 (1979-1990)
The most simplistic of all of the markings is the TMK-6 series. Here, both the bee and the 'v' were removed, leaving behind only the Goebel's name to take ownership for the figurine.
7. TMK-7 (1990-1999)
Following Germany's unification in the wake of the Berlin Wall's destruction came the company' seventh iteration of their famous markings. This series paid homage to this historic unification and added the original crown underneath the company's logo.