Found These Instruction Books On Motorbikes

Sorting through some old stuff and found these two books, given to me when a by retired couple when he passed away.
They knew I was interested in bikes
Sadly not for a Triumph but interesting
One is for a Comet and other is by the staff of The Motorcycle.
Don`t know if Comet is make or is model it refers to.
Lots of the old adverts in back and information about the bikes.
How to fit piston rings, points gaps etc

 

Thanks for that nice to see bike that goes with book.