If the finish is the "Wipe-on Poly Oil", it holds up very well to time... Oils tend to "sink" differently into the hardness of woods, getting potentially unevenly over time, and will look a lot different even within weeks... And even re-oiling can eventually penetrate to glue joints making them weaker... But Poly oil tens to stay put...
Over 40 years ago, I obtained a wood field camera that had been in a photographer's shop window as a prop... It was painted with white latex paint, and had been in the window for decades... Upon stripping it, turned out to be an early French camera that was the basis for the direct copy for the Japanese Anba... Wood was cherry, and all the brass turned dark black... Took it apart to clean the brass, fixed some cracking, and refinished with Poly Oil... 40 years later, still looks the same... (I never finished the camera due to not getting bellows for it, but still have the spare parts purchased back then to finish project... Found other cameras soon after to shoot with...)
One issue that comes up with re-finishing woods natural is often even the same woods will come up different shades when finished, so don't panic when that happens, it's just the nature of the woods... Wood cameras were painted or heavily stained to even this out, so consider it's part of its "character"...
Nice work!!!
Steve K
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