Fairly scarce and correct 3rd Generation Shadow Wave plastic Parker Vacumatics 1942-3. Note single jewel, stacked-coin cap-band. Plastic fillers are present. The green is exquisitely rare. I doubt I've seen 4-5 in green counting both sizes. For nearly a decade I'd doubted they even existed. The fourth color- black- i have stored in a different tray and didn't spot quickly enough to add to this shot.
regards
David