Solved Lovely but what tree is it? - Acer shirasawanum Aureum

This is a lovely tree but is planted touching the one next to it, trunk to trunk!! Unfortunately I will need to get rid of one, which will be a difficult choice, if I get the choice!
What tree is it please?

 

Looks like an Acer ( Japanese Maple ) to me.

 

That one is Acer shirasawanum Aureum. it used to be , more simply A japonicum aureum.

 

It's a lovely tree, I need to move one that is sharing the same space, just hope it doesn't upset it.

 

What is the other tree that is touching it?

 

Hi it's another type of acer, I like them both very much, I'm trying to find a suitable place to move one to once I separate them!

 

Keep Acer shirasawanum Aureum.
It is very slow. Obviously happy where it is.
Other one can be easily replaces... cheaply.

Do nothing till leaves are all gone.
If they don't separate easily cut 2nd Acer down to a stump.

 

Great advice! Thank you.