Going through my books in preparation for retirement and a big move next year, I found two copies of Diggory Hadoke's magisterial treatise on British boxlocks. I hesitate to lay the praise on too thickly, given that Dig is a participant here, but for clarity of expression and sheer technical expertise, and historical insight, I rate DH as about the best double gun writer this side of Gough Thomas. His book on British boxlocks will probably remain the definitive account of these somewhat underrated guns for decades.
I will ship one copy at my expense to the first person who sends me a PM with cc to Dave pledging $35 or more to DGBB. Please include your shipping address!
Bill