Anyone identify this runway tracking (one for Bluenoser 352)?

Sad, I know… perhaps I should take it over to AIX as well!

I’ve moved this here to keep the original thread on track.

Can anyone identify the tracking in use here?: http://forum.keypublishing.co.uk/showpost.php?p=1391098&postcount=10 and here: http://forum.keypublishing.co.uk/showpost.php?p=1391098&postcount=11

As a kid all the partitions in my parents goat shed were built from bar-and-rod, and the same stuff now does service keeping the hens in. In fact on a nearby farm I once saw an entire pig farming operation built of the stuff! But I’ve never seen a picture of it in use… I thought I’d found one, but having had a look I’m not so sure. Here’s the gen on tracking from Michael J. F. Bowyer’s “Action Stations” Volume 1. Hopefully this counts as fair use for copyright purposes…

It’s not Marston Mat/PSP (I’ve always known it as PSP, short for perforated steel planking – again, my parents have a couple of pieces) and I think it’s too flat and with the lines in the wrong place for Sommerfeld. Incidentally, the other month I was walking past some roadworks in Oxford and realised that the stuff they were unrolling to hold the road base together (now buried under a foot of tarmac… so it won’t be long before I see it in a pothole!) was the dead spit of Sommerfeld tracking!

Your thoughts would be appreciated! Many thanks,.

Adrian