Wonderful. Thanks for posting. Having the workshop notebooks tracing the whole development is unique for such a revolutionary invention. The connection with this history is there shooting with any Leica, but there's nothing like a Leica II and other Barnacks, so compact. I remember starting out in the '70s and being puzzled by books which talked about the 'miniature camera'. Barnack's own term of Lilliput is apt, a nod to Swift, an Irishman who imagined a whole world, just as Barnack did.