QUOTE (JimStrutton @ Jun 29 2006, 02:04 AM)
...I need to update you on a couple of points... My aim here was to just get a pen that worked
I agree, based on what you say, that what you have is eminently workable in the context for which you targeted it, and if it were mine I'd use and display it proudly as a pen I'd saved from the dustman. Heck, any "51" that is being used is better than a pile of "51" parts.
QUOTE (JimStrutton @ Jun 29 2006, 02:04 AM)
...he was reluctant to try anything other than a brushed finish as the acid treatment to get a true finish would attack the crack and could have written the cap off, so this was a cosmetic compromise...
$ set user/mode=pedantic
Here is where Kevin and I differ. I don't use an acid treatment to produce a matte Lustraloy finish. Acids are difficult to handle, difficult to judge, difficult to clean up after, and dangerous. To use an acid bath would require that the clutch and inner cap be removed and that the "band" area be masked with an acid resist to protect it from the etching action. This is all too much like work for me.

$ set user/mode=normal
QUOTE (JimStrutton @ Jun 29 2006, 02:04 AM)
Also as to the age and heritage of this pen, well give me a clue?
I'm going to guess that the sac guard probably has a plastic end cap, so what you have would be a post-1950 Mark I. (Short clip appeared sometime around 1951.)
QUOTE (JimStrutton @ Jun 29 2006, 02:04 AM)
I think this brings us into a wider discussion that my friends get into with vintage cars. When is a car genuine?
Ooh, that's a rathole I'll avoid, thank you very much. Is a 1937 Cord 812 that has all original factory parts, restored to perfection, original? What about the same car that's been painted with DuPont Imron enamel, which didn't exist while Cord was in business?

(A hearty cheer and a round of applause for the first person who identifies the computer operating system in which the "set user" lines could be seen.)