Photo of a [[Wirt]] screw cap [[mottled]] model. It's an [[eyedropper filler]] with a safety system (as described by patent {{Cite patent|US|978419}}). Both pens cited an April 7, 1903 patent ({{Cite patent|US|724983}} and {{Cite patent|US|724984}}) that seems to apply to the feeder. More info [http://www.fountainpennetwork.com/forum/index.php?/topic/236021-identicalf-wirts/ here]. | Photo of a [[Wirt]] screw cap [[mottled]] model. It's an [[eyedropper filler]] with a safety system (as described by patent {{Cite patent|US|978419}}). Both pens cited an April 7, 1903 patent ({{Cite patent|US|724983}} and {{Cite patent|US|724984}}) that seems to apply to the feeder. More info [http://www.fountainpennetwork.com/forum/index.php?/topic/236021-identicalf-wirts/ here]. |