Central Pacific Railway Uniform?

From: "WILLIAM JONAS" willhjonas@gmail.com

Could you help me determine the age and use of this uniform. The buttons were made by C.A. Brophy of Aurora, Illinois. The coat by Nelson & Berglund (cannot find reference for this maker – most of tag is torn off). The Custom Tailors union tag indicates 1883 or later. Almost identical Custom Tailor tag found on Internet had 1916 date on makers label.

It seems the collar is most unusual. The coat has fixtures for a badge.

Purchased in Arizona thrift store, no provenance.

Is it a 1900 +/-15 years CP railroad police uniform?

Is the collar original or a later embellishment?

Looks very Navy/Marine like ... Maybe Great War era???

The collar sewing looks original but very uncomfortable ... may explain why the collar hooks are quite worn. ...

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