I picked up quite a lot of old baltic pine (and similar) flooring. It has been heavily used and has an array of defects, nails, splits - altogether great and interesting stuff.

I plan to use it to line a new woodwork workshop for a bit of old style and charm - possibly face nailed and glued over plywood after a moderate sanding. The aim is a to get a feature wall.

Any suggestions on a finish to preserve the aged look and character?