The model is not taken from the AEIR book despite the code designation, but forms part of a small range of 'general' figures.
The figure appears in the Miniature Figurines 72/73 catalogue and the 75 catalogue under the same code.
The horse is PBH 221 - a cover-all mount suitable for most riders. I don't know which horse came with the model as advertised and suspect it was pot luck! As far as I know Minifigs never made specific horses for the mounted personality ranges.
Although both these figures have been stripped of their original paint you can still see traces of it here and there. Curses! I don't know what kind of primer or paint was used but plainly they made things to last in those days.
