Separate names with a comma.
If it says 1959T, that is the model, not the year it was made.
And a 1959T is a 100 watt model.
The 50 watt model is a 1987T.
I've had both & kept the older model 40C over the newer 40CR.
The only mods are tube changes, and it's never had any issues.
Also, I converted it...
Marshall 2555x Silver Jubilee Reissue
I bought my first Marshall in 1976, a '72 Rosemary JMP50 for $350
Yep, their have been sales between $1,800 - $2,000 recently
Yes, it was but 30 years ago
I did not say I paid those prices, but that I've recently seen a few being sold around those amounts.
So someone has been willing to go that high....
If you're referring to the 2204 JMP, I've seen a few in good condition sell for around $1,800 to $2,000
On your list, I would keep every Marshall. Sell the rest & buy a 1987 or 1959 to round out.
I have all of the Marshall's you do & a few more...
I almost always prefer 100 watt big iron tone and feel vs anything smaller, even at lower volumes.
IMO, the 2525 does not come close to my 2555x....