Congratulations! Very nice drums. They are made by a traditional barrel maker (tubber?) in Franken (northern part of Bavaria) on the authority of Meinl. In 1998 there was an article in a German drum magazin on the occasion of the resumption of producing the Woodcraft series.
Here is the general description:
http://www1.sticks.de/magazine/9801/woodcraft.htmAnd here is a description of how the congas were built:
http://www1.sticks.de/magazine/9801/meinl.htmOf course it is written in German – some facts:
The barrel maker´s name is Mueller and they build barrels in Unternesselwang (a little village in Franken/Bavaria) since several generations.
Prototypes of the new Woodcrafts were made in the beginning of 1997.
The material is German oak. The trees have to be around 200 years old. The wood gets cut into pieces of 65 mm thickness and has to (air-) dry 1/cm years (Foto 1).
The staves are sawed with a specific machine, which already considers the miter of the final curve. Then the staves are arranged to a round form and fixed with provisoric metal hoops. After this they get cooked for about 30 minutes in a big tub with water as preparation for the bending process. A machine put over more metal hoops to form the correct bending of the conga.
After this procedure the bodies have to dry two days at 60°C in a special oven. Then the staves are glued together (Foto 8 ).
There are specific turning calibers for the different sizes´ shapes and the bearing edges for the skins.
The bodies get their stains rubbed in with clothes: "Bordeaux Oak", "Cognac Oak", "Dark Oak", "Natural Oak" and "Rustikal Oak".
After this the final metal hoops were brought into their correct positions - they were not belted on but pushed as completed hoops in ring form.
The mounted hardware is from Meinl´s production in Thailand. The so-called True-Skins are normal for this resumed production. So I think, your instruments are made in the end of 90ies or beginning of the new millenium. The Woodcrafts from the 80ies were all in natural oak (maybe also in Rustical, but not in Bordeaux like yours´). And at that time badges were not covered with films - this is typical for all kinds of revival stuff.
One year later Meinl offered Woodcraft bongos as well:
http://www1.sticks.de/magazine/9811/meinl.htmYou can also find some special series of congas made by Mueller in Unternesselwang. I own a Selection Series´tumba made of bavarian cherry wood (in the way of Woodcrafts) in the end of the 90ies. Another Selection Model is made of bavarian ash (I am not sure). There was a thread about a cracked Selection conga at congaplace.com:
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