There's always a few old persimmon woods which generally don't go for much unless in pristine condition and by someone like Macgregor from a particular era (e.g 40's or 50's). Ben Sayers was one of the old club makers but was quite a popular brand with a wider market in the 60's and 70's. A lot would depend on their age.
Old Balls in their wrappers can go for £5-£15 a sleeve/ box but of course as an auction it depends if there are 2 or more people interested. These are mostly the old 1.62 size. Old style 1.68 balls are not so rare.
I'd say from my limited experience the Henry Cotton irons are the best item, especially if in good nick as a possible display item. I did see a set a while back but I'm not sure how much they went for. Maybe £60. I recall a really nicely refurbished set of Fred Daly irons issued to celebrate his Open win in 1947 fetched a good price.
I can only suggest having a bit of a search on e-bay and watching anything that looks similar to see what it fetches. Also look at completed listings. There's a vintage a set of Nicoll clubs that didn't sell first time around despite a starting price of 99p.
