PRTD - Multiple

[nfreeman2]

I live in Canada and my PR card expired the last time I was in the UK for a vacation (2 weeks). I was issued with a PRTD that is classified as "Multiple" and and "R-1" category which enabled me to return to Canada.

Can I ask, am I able to travel to the UK and back on this document as it states it is valid until valid until 25/10/2019.

Thanks