The photos are of the entrances to bee hives in the Beekeeping museum near Lake Bled in Slovenia.
There is a tradition in this country to hand paint individual pictures for each colony's identification.
The 'beehouse' as it is called is the original one used by Anton Janscha 1734 - 1773
Janscha used wooden rectangular boxes of about 45lires volume. A rear end board was used to slide in and out to reduce the space internally for small swarms.
usually there were 30 such hives in a bee house with entrances to work from inside the building and each colony having a different pattern entrance on the exterior.
Hive entrances in Slovenia today are usually just bright single primary colours.
His fame rests on 3 points:
1) He was certainly the first man to be appointed specifically as a full-time beekeeping lecturer.
2) In 1771, 20 years prior to Huber's publication, he explained the details of virgin queen's mating flight
and seeing the 'mating sign' still attched to the tip of her abdomen.He also mentions multiple matings.
3) He wrote a comprehensive book on the swarming of bees.