Late 1970s bookshelf with fairly low efficiency - for a JBL.
25cm with 7,6cm edge-wound copper bobbin, AlNiCo V magnet, linear frequency response up to 3Khz, low-tolerance diecast chassis.
13cm with 2,2cm edge-wound copper bobbin, 2,2cm rigid aluminium dome, low-tolerance diecast chassis set in its own isolated chamber.
2,5cm hemispherical dome made of two layers of impregnated cloth glued together with phenolic resin and set at crossed 45° angles for improved rigidity with 2,5cm edge-wound copper bobbin and frequency response extending to 30Khz.
More about the L110 lineage and downloadable service manual (which covers the two versions - L110 and L110A) here.