Welcome to the forum , joensue .
I found 259 records of paintings by caffyn , sales figs. dating from 1971 through the present .
You may also see these search results yourself (for free) at artinfo.com .... you will have to register , however , to check out the database (easy & no big deal) .
The prices pretty much ranged from $488 to $27,686 (although I didn't go through ALL the paintings) .
Happy hunting !!