Sheaffer is one of the more difficult brands to collect. There are so many models that it is simply very difficult to keep track of them all. I started collecting them simply because I love the inlaid nibs (as you can tell from the number of Targa's, Crest's and Legacy's I have) and some of the vintage brands are both beautiful and ingenious in their engineering (such as the Snorkel). Despite the relatively large number of pens I have, my Sheaffer collection is not well organized. The following are in alphabetic order.
There is no discoloration on the pencil cap; scanning fault.
This one came this way -- in a box with the cigarette holder.
Looks like Saratoga, but it is not snorkel fill. It may be the difference in this Canadian made pen.
This one is my father's pen.
(1067 - Gunmetal)
(1068 - Copper)
(1001 - Brushed Chrome)
(1020 - Brass)