These are THE classic Voysey dining chairs, with the heart cut-out backs, that form such a wonderful pair with the matching carver chairs. Seen in many a house interior photograph Voysey had. We've been making these since 1995 & they are still a delight to see & use.
The photos above show how these chairs colour with age over several years. The top LH photo shows them just after being made in almost Scandinavian pale wood, but they take on this lovely golden oak colour with time (middle photo).
Voysey always specified they be left in natural Oak finish, so they could age naturally. But all wood ages over time, especially 100 years; so the originals are all dark wood now. You could of course stain, seal, lacquer or wax them, all impart a slightly different tone & darken the wood from the natural finish.