I see Bruce has commented on the V&A blog page so communications have begun. I’m beginning to realize how the V&As plywood piece was manufactured, rather like the Lockheed monocoque Vegas and Orions from individual strips of veneer glued (laid up diagonally?) over or in a mould (male or female?)…I wonder which size tank the V&A example is from…50, 100 or 200 gallon…the latter would have been massive ….200 gallons occupies a rectangular box roughly 2x2x8 feet!