This is part has a pictorial representation of the choke. Consider second hand part 712907SH. An alternative choke knob is available, part number 725373 displaying the word CHOKE. See below.
This part appears on the following Triumph Catalogue Plates
Revington TR information: This is a choke knob displaying the word CHOKE. For a pictorial representation of the choke use part number 712907. . This item has a secondhand part available - see below