Abbreviations used in Poll Books

[Stirrick]

I'm looking through some old Poll Book transcriptions, and, helpfully, they don't have a list of abbreviations.

In the 'Entitlement to vote' columns, fr and rt are used.
Would I be correct in thinking that these are short for 'freehold' (i.e. owns the land) and 'rented' ?

And in the qualification columns, what do the following mean:
W Ch C

Could someone enlighten me ?

Stirrick

[Stirrick]

For those interested, I got the following links from elsewhere:

https://www.rootschat.com/forum/index.p ... msg5079497
http://www.electoralregisters.org.uk/pollbooks.htm
https://www.familysearch.org/wiki/en/Po ... _and_Wales