Wood finish on early 1893 Parker GH?

[Cameron Thraen]

Any advice - thoughts on the wood finish to use on an early Parker? Current finish is a J. Howe BLO variety over whatever was the original finish that I will be removing along with decades of hand oils and general grime. Shellac? Oil/ varnish? I like a rubbed in finish. The gun will see plenty of field work. Must stand up to Hawthorn, multiflora rose, Locust. Where the wild things hide.

Should you have a similarly dated GH that was well cared for over time post a photo of the stock. This will help me get an idea of the color and patina.

Thanks.