How nice to see an old friend – and still with the original ribbons!
I once owned the Carl Dieck group, 25+ years ago. The disposal of my KGL collection at auction (Christie's) was, at the time the most sensible thing to do (so I thought) and I did VERY well. I had come to the conclusion at that time, with the increasing prices for KGL material, that I would no longer be able to afford further purchases. To this day I look back on my decision with regret – I wish I had just put the entire collection in my SDB and left it there. Chances are that I would have still continued to add to a collection that is fondly remembered above all others.
This group alone made £3740. and I shudder to think of what it would fetch today – as a retiree I definitely wouldn't be able to justify the expense now!
A couple of comments –
— the Hannoverian (KGL) Medal originally came to me (and left) with the ribbon the correct way – it has been changed around perhaps by someone who prefers it this way, perhaps because of the specific KGL inscription on the reverse, or by someone who does not realize the correct method of wear – happily, the ribbon can easily be re-positioned.
— the Guelphic Medal named to Dieck was presented to him while he was in the Jaeger Garde battalion. After Napoleon's first defeat in 1814, many Senior NCOs were sent back to Hannover to help train the re-constituted Hannoverian army – these NCO's remained in Hannoverian service and did not return to the KGL for the final campaign when Napoleon escaped – Dieck could have been one of these men.
If not, then after Napoleon's final defeat at Waterloo, the KGL were Stuck off Strength (SOS) of the British Army and the battalions returned to Hannover, many men enlisting in Hannoverian service.
Given that his award was presented in 1818, this explains the naming on this medal.
Unfortunately, the Citation for Dieck's award which would have specifically mentioned his deed(s) has not survived – very few have. If memory serves, the only Citations to have survived are the 83 mentioned in Beamish's two volume 1832-37 (?) history of the KGL, probably the rarest Napoleonic British regimental history – now happily reprinted and available.
Further information may be available from The Guelphic Archives in Hannover, but access to the Archives was tightly controlled (1980s) and might still be only available to scholarly researchers (i.e. not collectors).
Don't quote me on this because it has been too many years since I have been in Hannover.
Another interesting museum well worth a visit is The Bomann Museum in Celle, a few km north of Hannover. The museum has many KGL items, but the main displays are MANY original uniforms of the different battalions which were preserved by Dr. Bomann back in the 1840s and 50s (if memory serves, again). When I visited back in the late 1980s it was very overwhelming.
Cheers,
Gar