[George McKenzie]

This is one set of mixed up numbers .and little information ,but if we can post enough numbers we can solve this thing our selves .Thanks for the info sofar . this is what I know

Lower hull number at the back This is not on your plate but can be the same as your serial number or close to it ( my MK11) is the same CB number behind the gunners head Is less than the lower Hull number about 100numbers or less
HULL number about 500 less than the CB number or 100 more than the lower hull number
SERIAL number on the top right end of the front armor .read from the front.
Can be same as the lower hull number or up to 1000 different more or less
ENGINE number TL xxxx - F any where form 3 to 2000 over the lower hull number
CD A number the GOVE used to order a groupe of carriers also shown as WD number
BUILD DATE If you have 7 numbers for you CT number the last number will give you the month .You will have to compare other carriers to get this info
CT number is like a license number Painted on the sides and stamped on the front armor up to 6 numbers ect: CT25848.4 the 4 is MAR year
Front armor reading from the front should look like this ( serial)# 1944 APR CT25743.4 Nigel Watsons book VOL 1 has WD numbers and contract numbers Hope this is clear as mud will give you a start for your numbers George