The first of 3 bulbs in a new-to-us bathroom fixture has burnt out. I (my wife) would like to replace it with the same shape, but unfortunately the label had worn off -- all we can make out is "60" (watts, presumably). Anyone recognize it? I'm in the US. Have tried google image searching as well as tineye.com; the closest I've seen is an a-series-shaped tubular (t-series) bulb, but I'm striking out with local hardware stores.
Updated (based on finding the Kirby Risk site) - the width at the cylindrical part is about 2 1/8", making it an XXX-17 (or -18 if I'm mis-measuring).