Very interesting article!
Was there ever any shortage? I know I heard somewhere that the lack of steel during WW1 was one of the reasons they started making fiber/thorn needles & then found out that they were kind to the records aswell.
Here is a great site, with loads of tins (and phonographs & soundboxes & paraphernalia..)
http://www.grammofonmuseum.no/Stiftesker/HMV.htm
The site isn't the greatest design-wise, but well worth the effort.
Click on "Marshall" on the left menu.
There you find both wavy needles, the spear points (called Doppelton in German, translates to "doubletone")the Aeigir with a large "collar" & the spiral needle I mentioned earlier
If you want a few of those spirals for your display board, give me a shout. I'd be glad to contribute to such a nice project!