Stain Matching a Large Veneered Door

[BlackRockNovice]

Hi everyone,
I have a 1971 mid century house with a very large cavity sliding door (2500H X 1800W). The previous owners had a dog that had scratched up the finish on the veneer. Fortunately the veneer is still in good shape. Full disclosure, I sanded back the damage and (foolishly ) applied a Jarrah stain and varnish(cabots) when we first moved in, which was clearly the wrong thing to do as the door has a nice matt satin finish - It sort of colour matched but had a high gloss finish - I have since stripped the damaged area again. There is also a test strip of danish oil on the bottom of the door as I wanted to see how it came up with some oil.
It appears to me to be stained (photos) but I have no idea how I would match the existing finish (oil/stain/wax?) or if the entire door would need to be refinished to get a good match.
I am attaching a couple of photos and would appreciate any advice or a link to the right place if this has been addressed in another thread.
Thanks in advance!

[droog]

In simple terms there are two ways to stain finish timber work. One is you apply a stain to the timber then apply a sealing finish over the stain.
The second is a colour used in the sealing finish that is applied.

If the first method is used you simply find a matching colour and then seal the entire door to achieve a uniform colour and finish.
If the colour is in the sealing coat it is then dependant on the number of coats that you apply to the door, where you overlap previously coated surfaces you also build up the colour depth making it very hard to get an even colour and finish.

From your photos I suspect the door is coated with a coloured sealer and you will struggle to get an even colour and surface finish with any area patching.
If it were me I would find a matching proof tint stain, then strip the entire door face and re-stain. The seal with a finish of your selection and compatible with the stain used. I would use a water based clear due to ease of use and no yellowing with age.