Hey Tim!...Tom here (JRH .480)
I had a early Charles Osborne but its gone and it was sweet and light at around 11pounds and I bet it had alot of history!
All the recommendations above should help you find your dream 600 (also keep checking Guns International Double Rifle Sections). Searcy was mentioned and he did me a 700HH many years back but no Nostalgia. Ken Owen built me my 4 Bore Double "Mastodon" and has built many 600s and some with spare .577 barrels too...but again no Nostalgia.
Its ashame my good friend Cal Pappas in Alaska passed as he had I think a Rhodda 600 like his 4 bore Rhodda...I do not know what has happened to his collection?
Again with all the leads above and now that you put the word out you should be owning one soon!
Good Luck on your 3 month Safari...Wow!
Thats a long time with No McDonald's or Biden Politics!
Happy Trails
(Charles Osborne shown below)
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