I've searched high and low on ebay, none of these numbers are a model number except for the wifi adapter itself.

Just looking for some sort of data or anything? an actual model number would be great..

That's not a Routerboard, but what looks like a PC Engines Alix 2 Series board based on a 2D3 from mid 2000's.

Wireless card is a 12+ year old ROS supported one, a CM9 (Atheros AR5213).

Have one 2D2 still bouncing around, hw reliability vs an all-integrated routerboards is a joke (logical, this is an x86 PC board, look at all those connectors)...

in fact it was this plus Routerboards emerging by that time what turned me into RouterOS + Routerboards.

Agreed. Certainly not an RB. Most likely an Alix as previously mentioned.