Looks like FindMyPast have a CJ Taylor, Enlistment year: 1939.
If its the same record, it's probably the Royal Engineers tracer card, which plot a soldier’s movements within and between regiments.
The amount of information listed varies, but the records include the man’s first name/s, last name and army number. Many men also have their date of enlistment and or date of birth included.
Tracer cards can be hugely complex, and the information on them is usually in abbreviated format.