Shanghai Hero Group
Ernesto Soler's encyclopedian Parker 51 site
The endless horrors of the World of Kitch website
The vacumatic wikipedia page
Ariel Kullock's site - custom made 51s. Wowee-wow-wow!
Prather Pens - Wowee-wow-wow! (with Christopher Walken's inflection, not Borat's)
Torelli Pens - Wowee-wow-wow! (see above)
The Red Cross
TemeCycles eBay store, cheap Woods valves
Maidstone Aquatics eBay store, for the aquarium sealant
Cathedral Pens for the vacumatic diaphragm
Ralph Prather's fascinating FPN post showing a photograph of an autopsied vacumatic Parker 51, illustrating the barrel's diaphragm cavity.
Connely's level raising solution.
David Armstrong's excellent step by step teardown of a Parker 51 vacumatic filler unit - could have been tailor made for guiding this project. Outstanding!
Penfisher's clever pellet-socket-from-a-ballpoint-pen FPN post.
Ernst's page at Ravensmarch, on diaphragm replacement - especially useful for ascertaining the correct diaphragm length (long enough to fully extend, but not stretch).
Hennypenny's FPN post mentioning the use of aquarium sealant to block breather holes in eyedropper conversions
David Nishimura's Seven Deadly Sins of Vacumatic Repair
Captain Flint's joyful rendition of Yo-Ho (It's a Pirate's Life For Me), on permanent loop as I typed up this series of posts.
Blogger! Why do I have to fiddle with the HTML to place two photographs side by side, with word wrapped caption text for each? Contemporise, man!
YouTube, I do wish you had some sort of offline software available to reencode large files.