Should have thought that there would have been some questions about this action!

The release latch is just as one would expect on a droplock:

Here you can see the locks.

It has a Silvers pad and the cheekpiece has been let in for a pigskin pad. I am not sure when or by whom this was done but there is no mention of a leather pad in the ledger. The angle on this picture is goofy making the butt look really short. It has been shortened an inch though.

This gun is #18114. Here in the ledger it is noted that it was made on #17921. Unfortunately, I still need to get that page from W.R. to see just what it was to begin with or if it was ever finished as a complete gun.
As you can see they were all two trigger, ejector, fixed lock, carved fences, with coronet and greener side safety.

He definitely had interesting taste in chamberings...
The two ledger pages I have show the Maharaja of Alwar ordered nine double rifles at this time.
#18109 .280HV
#18110 .280HV
#18111 .270
#18112 .270 (Noted as rebored to .280 and re-numbered #19772)
#18114 My .350No.2
#18117 .280
#18118 .240H&H
#18119 .240H&H
#18120 .360 (altered from #9850 Detachable one trigger)
All delivered on October 18th, 1926. The copies I have stop at #18120 so there could be more on the next page of the ledger.
I know of one of the .270s (yes, .270 Winchester) which has had another set of barrels in .375 flanged magnum made for it.