These OM numbers are internal Philips stuff. They are used for development purposes and are replaced by a definitive code later.
I guess is difficult to get info on them...
I kinda figured they were internal numbers. I was hoping someone
might just have some data on it though or maybe even a retail part
number. I have quite a few of them.....came in a box with other stuff
and thought they could be put to use. Oh well, might just turn them into
bin fodder I think.