It's been 4 1/2 years so thought it would be worth reviewing alternees and scrolls
http://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=387875#Post387875

Parker D3



Showing the "zipper" welds and straight ribband edge welds



This is fortuitous. A messy 3 Iron Oxford 1869 Wm. Powell of Steve Helsley's with the end-on rod shown, and I count 8 low carbon steel (black) and 8 iron (white) alternees. Just above the end-on, is a side view of a squished rod.