Came across this by accident.
http://www.cbgc.co.uk/1895_clubThis is to my knowledge a unique way of offering complimentary play on other courses which (presumably) share a similar membership, while having the added benefit of making each member more aware of their own clubs heritage. Cost to each club, very little, potential benefit to membership high.
There are at least 6 club on the list that I'd gladly pay full green fees on, and I’d happily investigate a few more.
Does anyone know of similar efforts?