Older Bausch and Lomb spotting scope question
My dad passed down to me his B&L scope he used as a guide on Kodiak and in the Brooks Range. At least 30 years old, a light green color with a 20x eyepiece that unscrews, extendable glare hood up front, etc. No model numbers/names/etc to speak of that I can find, but there is what appears to be a serial number stamped on the focus knob.
My question is what/where/if I can get higher power eyepieces for this scope? I've googled around a bit for this and the best I can find is the statement that "Bushnell bought B&L optics a while back", etc.
Any ideas? Is this a "universal" widget I should be able to get somewhere, or proprietary to B&L? Thanks!