For the first i guess that it has not been used as a flatbed because it is not cut so accurately...
The second one i 'm sure that it has been used as a flatbed ...

21 73 154 3 004-1 at Agii Anargiri
21 73 154 3 276-5 on Tithorea's turntable
21 73 154 3 312-8 burned at the Drug Addicts' place - Acharnes
21 73 154 3 356-5 at Rouf - part of the '' Train at Rouf '' theater ...
21 73 154 3 396-1 at Nea Magnisia, Thessaloniki