Hiram - the reference to a "Sherman in a Can" is just my tongue-in-cheek way of describing this build. The way that the Sherman was encased in metal to seal it for future usage.
The tanks that were dropped in the ocean are ones used to create artificial reefs I believe. Not only Shermans were used for this. So, no, not the same thing. The Shermans were mothballed in Detroit for future usage. Many were used in Korea.
As soon as I run out of Sherman variants to build, I'll send you whatever is left over.
Will - The picture on that site is either an M4A2 or and M4A3 with HVSS suspension. If it's an M4A3, then yes it was a late comer to the war. If it's an M4A2, it's in the wrong place. The Russians may have recieved some on lend lease, but the commonwealth troops didn't and the U.S. never used them there.
Thanks everyone for your kind words.
Happy Modelling and God Bless
Robert