... site provides a very nice shot of a diamond connecting Slow to Fast at Craigentinny, the link for which is here. It bears a very strong resemblance to the double guarded diamond shown in Richard Chown's drawing. Another shot showing the arrangement of interlacing on an NBR diamond reasonably clearly is here, at Melrose in the LNER era. Last edited on 5 May 2016 16:09 by grahamroberts posted: 5 May 2016 22:17 from: alan@york Not quite interlaced, but perhaps unlaced...a@y Attachment: attach_2278_401_34c.JPG 459 Last edited on 5 May 2016 22:19 by alan@york posted: 5 May 2016 23:30 from: Jim Guthrie alan@york wrote: Not quite interlaced, but perhaps unlaced...a@y Alan,...but standard practice on some US railroads. Look at Page 5 on this PDF http://www.up.com/cs/groups/public/@uprr/@customers/@industrialdevelopment/@operationsspecs/@specifications/documents/up_pdf_nativedocs/pdf_up_std_5000.pdf It's actually a good way to get ...