Is there a standard spacing for the Begrenzung indicator posts on German roads, during Epoch III and IV at any rate (around 1970 in particular)?
I'm referring to the indicator posts on each side of the road: these are white, about a meter high, with a black portion at the top. Small reflectors are attached to the black portion so that, in the direction of travel, a single bar is indicated on the right hand post. The left hand post, in other words the post on the opposite side of the road, shows two reflective discs. The posts are triangular in cross section, with the apex facing the road.Thus, each post carries a strip on one face and two discs on the adjacent face.
I always thought the standard spacing was fifty meters but, judging by photos, there does not seem to be a standard rule.