Postwar Lionel 6026W tenders

I believe the practice started in '57 when they began printing on the side of the tender.

C W Burfle posted:

Can anybody point me towards a resource that discusses postwar Lionel 6026W tenders? I am interested to learn when the tender came with the 6026 number marked on the side of the body.

I am working on an odd tender that is marked 6026W in white on the frame. Would it have come with a marked or unmarked tender shell?

Which engines would have come with which variation (marked or unmarked)?

The 2065 Hudson locomotive, produced in 1954 and  1955 came with either the 6026W  or  2046W tender. The  2065 Hudson from 1956 came with a 6026W square tender (pictured) with bar end trucks and a tabbed coupler.

Thanks guys.
The 2065 is one of several locomotives that came with a 6026W tender. I think the 2055 also came with a 6026W. I was hoping for a chart or table. Tandem has a couple of pages on tenders, but somehow they seemed to have missed the 6026W.

FWIW presume you recall this old thread containing the results of TELEDOC's research to match Postwar tenders and locomotives, but it doesn't answer your primary question.  Can tell you I had a 2065 ('54-'56) with a 6026W, purchased from the original owner and since sold to a Forum member, that had no white id marking.  Looking at TELEDOC's spreadsheet, my best guess would be the white marking was only on the 6026W's paired with 2037's from '57-'59 (all of my whistle tenders after that timeframe are marked) as Pete F. suggested. 

I had a 2037 with that tender.

Thanks again for the responses. The spreadsheet in the thread linked by Hobby-Go-Lucky was a dim memory. I am going to have to download it.

It is interesting that the 2065 (54-55) is pictured above with a tender that has numbers on the side. That is two years before Chuck believes it was done. (not doubting his information!)
My guess: the tender in the photo was married to the locomotive, or the shell was replaced some time after the engine was purchased.

Here is a chart it is on the second page, all the 6026's had Lionel Lines printed on the side...

FWIW, I just took a look at the catalog illustrations from 1954 through 1966. Starting in 1964, the images of the square tender clearly show white numbers on the side, but not before that date.  Lionel used photo images at that point, but it’s not to say the previous artwork would have simply eliminated that detail.  I can not verify the chain of custody on the 2037 I picture above, other than to say that’s how I bought it.  

Thank you all again for your responses.

I had some time to browse through my books this morning and found that the Greenberg guide:
"Lionel Trains 1945-1969 Volume VII: Selected Variations" has a chapter devoted to tenders.

According to the section on the 6026W tender:
made between 1953 and 1959.
Pre-1955 examples are rubber stamped "6026W" on the frame.
6026W started being marked on the sides around 1957.

The chapter says bar-end (metal) trucks with magnetic couples.
The book has tenders pictured with and without the numbers on the side.
Both have the bar-end trucks.