Picked up a Bausch & Lomb "Balscope 60 Zoom" 15-60x spotting scope last year. From my research I believe it to be circa early 1960's. It's mint, with original box and papers, even. Only problem is the ocular (eyepiece) lens is loose and flopping around in there. Who's good with repairing old (Rochester made) Bausch & Lomb optical stuff? I'm open to suggestions and/or recommendations.