As Uwe already said, this caulking is fantastic, I think I give it a try on my Royal caroline.
If you need anything specific on the boeier please let me know.
The oroginal Sperwer that you are building is based in the Zuiderzee museum in Enkhuizen . If you need something I can contact them for you.
I found also this drawing of the Sperwer, don't know if you already got it.
View attachment 66450
I'm very touched by your attention. The plan that you sent me is one of the two i have. I have heard about the museum and
visited the site. I'm very grateful for your offer on communicating with the museum. If i have any questions
i would gladly take your kind offer.
My best regards.