On A-Z's, " A street name, followed by the name of another street in italics, does not appear on the map, but will be found adjoining or near the latter".
Sealey street is in what was known, and still is, known as Monsall, although, in the past it was often referred to as Collyhurst. I think it was sometimes referred to as Miles Platting with being near the end of Queens Road. I had ancestors who lived in that area and at the end of Collyhurst Road, just before the railway, and they both mentioned Miles Platting on occasions.
Eric