Update: it has arrived and is magnificent.
Image taken with the other DOF king of the four-thirds line-up, the Summilux 25mm f1.4. Note how I lost control over things and overexposed the image by almost a stop, which had to be pulled in PP. Even the RAW headroom of the E-1 was not enough to save the burned-in areas. Because of this, purple fringing around the engraving still has a blueish-purple halo around it, even after "defringe all edges" - a setting that has to be applied to almost all Summilux shots.