Omega Speedmaster 105012 found in abandoned house

This features a 105.012 I bought a few years ago. The late owners daughter found it where it had lain undisturbed for a year and a half, in a sock.
The 105.012 is one of the most attractive references to my eye as it has the shorter pushers and often the dials are very attractive.
This one is a 105.012-65 with an HF case, and double bevel case back. It has original fat neck pushers and what I believe is all original parts including the 24 tooth crown and narrow logo crystal.
It has a curious number on the lug and I think it is an inventory mark.
The hands are slightly decayed.
The dial is almost perfect and any marks you see I have verified are on the crystal.
For more on speedmasters go to www.speedmaster101.com