The problem is the White Gold papers have taken so long to publish that many are now obsolete.
There have been more recent conferences with more up to date data on various topics, such as the alloy content of types other than the Lydian lion heads.
Now we wait for those to publish.
This is becoming a systemic problem in the numismatic publishing industry. Regular journal articles even take two plus years to surface, while for conference proceedings and the like the timeline to publication is seemingly open ended. Journals are now regularly published one to two years after the date they bear e.g.
The American Journal of Numismatics, although I understand they will catch up this year due to a surfeit of 2017 submission that have been carried over to make the 2018 volume. Even so, it will be about 18 months lead time for the publication of those papers, which is about as
good as it gets.
Despite all the modern technology involved the efficiency of the numismatic publishing industry, as measured by time from submission to printed product is worse than in the days of Gutenberg and manual typesetting. Go figure!
I suspect that this is the result of too many people involved in the editorial and decision making process, rather than a technology issue. The more people involved the slower the turn around time and the more egos that have to be assuaged in the decision making and editing.
Sadly, I think it is inevitable that it will be suggested by the blockers in the editorial and publication process that solution will is the abandonment of the printed word in favor of digital only publication as enacted by the
Journal of the Numismatic Association of Australia (
http://www.numismatics.org.au/naa-journals/2016/) which went this way in 2016 and has yet to produce another volume despite what proponents of digital publishing would suggest are the efficiency gains!
Digital only publications are a potential
boon for access and readership, but do not solve the growing inefficiency of an often ego driven, peer review and bureaucratic editorial process in which delay and deferral is the norm.