Knomad,
I don't know if your auction was successful or not, but I would start the auction at a much lower price and let buyers determine the final price. The Aerolux Popeye bulb is very collectible, but starting the auction at $275 would normally scare most bidders away. If in good working condition, I'd value the bulb at around $100-$125. Though not rare, it's highly collectible and popular (same for the Aerolux Reddy Kilowatt bulb). If you have the original Popeye boat lamp base, then this adds a considerable amount to the value vs. just the loose bulb.