They're both Isle of Wight Studio Glass. The "Peat" (and Shamrock and Heather) designs were the designs MH gave to Kerry to start up with, they were made in both places.
The only way of telling them apart is by label, or, if it is a later Kerry bit, after the original flame logo dooffer got lost and a replacement was made with the flame the other way around.
many Kerry pieces have the flame mark the right way around.
Yup, a very good purchase! :smg: