As a UK-based Wyvern collector, I find it entirely feasible that Wyvern [not mentioned by Deb] may have had a hand in making National Security pens at some time - along with others (Lang, Valentine )Wyvern seems to have been very active in 3rd-party commissions. But it's difficult to verify such speculations so long after the event.
I find 3rd-party pens an intriguing field for collection - there are a lot out there but the documentation tends to be very thin and guesses/rumours can become quasi-canonical by repetition.
It would be a good area for collaborative discussion through the various pen forums if the threads could be aggregated somehow...
Responses
www.newpentrace.net