Hi Woodie,
An extra bit of information is that it is a "PP1" design. The comments by glasstrufflehunter are spot on. There is no defined eBay selling price for these. Even though they are good quality, there were a lot of them made. You could get an idea about possible sale price by searching eBay for past examples - they come up quite often.
If you do sell it on eBay, please consider adding a reference to glassmessages.com for any info in your listing that was provided here. And do add a post for it in the Market Place forum when you put the listing up.
Also, regarding your Whitefriars weight, are you aware that Caithness bought the rights to use the Monk cane when Whitefriars closed in 1980 and that any weight with a Whitefriars Monk signature cane after 1980 will be Caithness, not a true Whitefriars?