Holster for office job?

What I do for a holster without consideration of the public, is to use a Military Style M-7 tankers shoulder holster for a sitting position. It leaves the weapon up high on my left chest in an out of the way position.

It does not sit as far to the side as weapon in the that photo CF posted. That is more like the traditional shoulder holster, that I also use for CCW.

Another thought are the belly band holsters. They can ride as high as needed for when sitting in a chair.

But a full sized model 1911 in .45 a.c.p., is tough to CCW in an office environment.
Maybe a holster for inside the chair, if it is a closed frame (sides of chair covered in leather or fabric) model? If that is where you are gonna spend a lot of your time sitting down, during the work day.

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Smarter than the average bear, sitting here on my hilltop 80 acres in the fog above the ocean...

"Life is tough, but it is tougher when you are stupid." - John Wayne

With the deep concealment holsters I've shown above, one might consider modifing the shirts you wear to the office as follows:
1. Remove one or two buttons in the chest/sternum/belly area of the shirt.
2. Sew the removed button(s) directly on top of the applicable button hole(s).
3. Sew two small squares of Velcro in the area where the shirt once buttoned.

By doing this shirt modification, one can quickly "rip" the shirt sufficiently open to draw the handgun easily.

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This is the government the Founding Fathers warned us about.....

When doing this maneuver, make sure you have your Superman t-shirt underneath lol

Limey