Not on "Immelmann III",delivered in October 1939.
Hitler's armchair (Fuehersessel) was originally designed to accomodate a built in parachute but none was fitted on this aircraft. The chair was not armoured.
Parachutes were built in to the redesigned armoured armchairs fitted to the armed Condor aircraft delivered to Bauer's "Fliegerstaffel des Fuehrers" beginning in early 1942. I don't have a picture of Hitler's armoured chair but have a couple of the one fitted in Fw 200 GC+AE,used by Himmler and Goering,and it is quite different. Hitler also used this aircraft on occasion.
I think you can safely assume that any aircraft which was part of the F.d.F. would be immaculately maintained. No need for heavy weathering!
As for the picture taken inside a Ju 52,I think that is quite early. The original "Immelmann",a Ju 52/3m,D-2600,was aquired in June 1933 as Hitler's personal transport. Hitler is sitting in his favourite seat and had an altimetre,air speed indicator and clock fitted to the bulkhead in front of this seat. He also had a small folding table,not visible in the photograph.Four more Ju 52's were acquired for the newly formed "Regierungsstaffell" in 1934,after Hitler became chancellor.
My money is on that photograph having been taken on D-2600 in 1933/34.
Cheers
Steve