grade

5 photos and 1 illustration tagged grade, from 3 members of Flickr Commons.

When were these photos & illustrations taken?

1939

2013

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The last upload was January 2016.

Here’s a selection of the conversations happening on these photos & illustrations:

Kees Kort said:
The picture shows Hans Grade flying his own design on 30 October 1909 at Johannisthal (Berlin). The occasion was the competition for the Lanz prize. A figure of eight had to be flown between two towers which were 1000 meter apart. Grade clocked a time of 2 minutes 43 seconds, which won him the prize of 40 000 Mark. The machine he used was his second design, construction of which started June 1909. Span 10,2 meter, 120 kg weight without fuel (!) and fitted with a 4-cylinder air cooled engine delivering 24 hp at start and 16 hp in flight. The machine was named the 'Libelle'. Although identification of machines from the early times are sketchy, I would suggest this is the Grade Libelle monoplane (24hp / 16hp engine, June 1909).

1 older comment, and then…
perfgeek said:
Grafiti on road signs even ca 1940 :)
zen Sutherland said:
Much of the graffiti of the pre-50s were considered 'hobo markings' that would indicate such things as "where a train slows down" or "no night watchman" or "this lady will feed you" etc. I wonder if this is such a mark?
Mark Vogel said:
Hi, I'm an admin for a group called Railroad Crossings of the World, and we'd love to have this added to the group!
gkiltz said:
Update the road signs, this may not have changed much at all
ashpitman said:
Another amazing composition by Delano.