Hard to say, Storz may say if you took the time to thoroughly wade through his book (it is a time consuming process to find anything in that book, I really need to go through it and index topics in a spreadsheet, but it is a jumbled mess, - tons of great material haphazardly assembled and poorly translated.), but I didn't see a time frame for curing walnut stock specifically. I assume Mike and Bruce might know, or have the time frame in their book, or Jon Speed has a document on this process, but offhand I do not know the cure times involved. Storz only comment on cure time was two years for raw beech, and numerous meanderings about curing problems, some of which suffer from a poor translation.
You might ask in the nazi era section about the cure time for walnut stocks, Mike or Bruce might know offhand, but at the moment I can't dig through their two books hunting for an answer.
You might ask in the nazi era section about the cure time for walnut stocks, Mike or Bruce might know offhand, but at the moment I can't dig through their two books hunting for an answer.