Your shop number 1141 translates as CT40921. Here is what RamTank.ca shows;
Oct 1944, shown as a Cruiser, held in stock
July 1945, shown as Struck Off Strength to the British
no photo on the database (yet)
I have added a section on numbering to the site and, thanks to Bill Miller's documentation, can now explain discrepancies in the first 31 MkI Rams.
http://www.ramtank.ca/ramcensus.htm