Hi Mick,
On your pictures, was a measurement on inches or centimeters ? I believe it was in inches (black tick with "1F" would mark 1 foot = 12 inches). Please remind me if i'm wrong.
My old eyes told me, the blade has at least 21 inches long. In centimeter, it would be 21 x 2.54 = 53.34 cm. long. In traditional Java sheath, I must order a custom made, quite long pendok. In Bali sheath, I believe, it would be fit perfectly
. Bali or Java, or even a newly made madura, still I wish I had this blade
best regards,
boedhi adhitya