Hajdamach (British Glass 1800-1914) had the answer to this, not the earlier Rhenish version - which still needs clarification but to a Victorian patent. But as with any book description you need to locate an image that ties in with the investigation and Hajdamach lacked that.
This missing link was turned up by David and is shown below. The example is Paul Raoul de Facheux D'Humy and dates to 1878.
This clearly relates the D'Humy patent to the styles such as IOW Aurene, Stuart Strathearn's "Ebony & Gold" and similar decoration by many others.
On page 327-8 of Hajdamach is a description of the process patented by D'Humy who traded in London, UK, c1880, as Aurora Glass Co and Vasa Murrhina Glass Co. Very little is known about him - but he gave examples of his work to the British Museum. This ensured their documentation and could well have been seen by the various glassmakers that rediscovered the technique since then.
Does anyone have any colour pictures of this glass in their libraries?
This subject still needs data on the 3rd to 4th century Rhenish 'fondi d'oro' glass for excluding or including it.