I bought a cluster of "old pens" from Ebay as one was a Sheaffer I thought might scrub up well.
A photo will follow when I've charged my phone up.
My confusion is, it has a sac fixed in place, but no other sign of a filling mechanism - no moving blind cap, no snorkel, no nothing. Just an ink sac.
Did Sheaffer make any bulb fillers?! Or is this someone's cartridge pen that they've glued a sac into, to make a bulb filler?