So I've noticed that GoldBacks (the alternative currency that debuted in Utah in 2019) are currently classified under “bullion”, but personally I wouldn't call them that, not because the gold content is so small but because its purpose is to be used and circulated as actual money in businesses that accept them. Would they then be better classified as circulating coins or local coins? There is precedent for foil notes being listed as coins, such as this one from Niue.
On a mostly related note, the Utah and Nevada series of the GoldBack had changes to the lettering starting in 2022* (New Hampshire seems to only have the new lettering despite the series debuting in 2020) and most of the Utah denominations at least already have two listings each, but I seem to be unable to remove individual years from listings, if anyone is able to make the GoldBack collection of Numista listings more streamlined.
*At least according to images from for-sale listings on USACoinBook.com published by “CertifiedCoins”, who sells GoldBacks by year and from whom I bought a 2024 Utah 1 GoldBack that just arrived today (gotta have both varieties, being a by-type collector!) and below is a comparison of the 2019-2021 and 2022-present GoldBacks made from images from that seller's listings:
