We do not operate an online shop or mail order for currently available sheets. However, the AGK receives model sheets from estates or donations, which are sold at trade fairs or in our online shop.
Sometimes people ask us whether we are interested in workshop reports. The answer is: Yes, we are, but only if they are helpful for our research on a publisher, designer or a specific (historically important) model; we do not offer advice to modelers about how to construct their models. There are other platforms on the web that offer that kind of assistance.
We also do not have an online shop for card models.