Waterman’s 12 SF Sleeve-Filler with Rolled-Gold Filigree Band New York, USA, c. 1908–1915 Black hard rubber (ebonite), chased; sleeve-filling mechanism; rolled-gold (gold-filled) filigree cap band; 14k “Ideal” No. 2 nib
A refinement of Waterman’s early self-filling era, the 12 SF replaces eyedropper filling with a cleverly concealed pressure bar. Sliding the barrel’s outer sleeve reveals the bar; a press collapses the sac, and releasing it draws ink—an elegant solution that preserved clean lines and minimized external hardware. The model code denotes “1” (black hard rubber) and “2” (nib size), while the chased surface, globe-logo imprint, and slip cap situate the pen squarely in Waterman’s pre-lever tradition.
The rolled-gold filigree band—a mechanically bonded gold overlay formed and pierced to pattern—adds both luxury and practicality, reinforcing the cap lip against stress while introducing jewelry-grade ornament. Combining discreet engineering with decorative craft, this 12 SF captures the moment just before Waterman’s lever filler became standard, embodying the transition from late-Victorian aesthetics to modern, reliable filling systems.