Bates number 50124698/50124707
Parabolic mirrors have cross-sections that are parabolic curves
The letters stand for the surnames of the two men Hans Werner Aufrecht and Erhard Melcher who, in 1967, established a racing engine forge at Grisbach, near Stuttgart., hence A (Aufrecht) M (Melcher) and G (Grisbach)
Pretty soon after they were introduced their popularity exploded and its not hard to see why
From arriving at City Hall station (which I dont necessarily associate with hip cafe area), entering the old building that looks like an office, riding up the elevator (at this point I felt like I should have an employee ID of some sort hanging on a lanyard around my neck) and finally stepped on the 17th floor greeted by the view of the cafe through the glass door, the whole thing was a little unusual to me
Finishes were so soft and permeable that the moisture literally evaporated out of the wood and had to be replenished regularly with oil polishes and waxes to keep the wood from drying and decaying