Hi
If you look up the entry on Ancestry.co.uk, for that census year, what does the printed page interpret it as.
There is a Martley but the 3rd and 4th letters appear to drop below the line as well as above which would lead me to suspect ff or ss if written by someone with a flowing script.
Also Worcestershire used to have some detached areas which are now parts of other counties the Tipton/Dudley for one