I'm presuming it's some kind of mahogany, I've ruled out Sepele as it doesn't have the density, so I'm presuming either Brazilian, Honduras or one of the African mahoganies, any help would be appreciated.
I buy quite a bit of reclaimed timber from reclamation yards, I have an opportunity to buy some more of this, its approx 3"x 1" and around 3m long but with a few small nail holes in every 16" or so, I'm presuming it was used for flooring of some kind.
Utile would be the closest thing I've seen to that colour,
I only have two bits of the stuff, salvaged from a manure heap...
its darker than the rest of the dark tropical hardwoods which can have a yellow or reddish tones without going into browns.
Haven't a clue what the second is.
Iroko is in the third pic for sure, it is the most common you will be likely to find, if you're into hoarding reclaimed timber.
Nicknamed African teak by some, but real teak is from Burma, now Myanmar,
and Iroko comes from central Africa.
I have a shed full of the stuff from years of hording, it's great stuff.