It's not a bogus label at all. It's an importer's label. There were many importers in the 40s/50s/60s/70s who purchased in bulk or contracted for particular designs directly from the manufacturer. G Hardy, Jones and Co., Irice, I could go on for ever. Manufacturers will sell to whoever buys, many didn't/don't label their products, some do/did and some don't/didn't if their purchaser asked them not to. Sometimes manufacturers exported under different names because their company name was perhaps unsuitable for the destination. It's a practice that still goes on today. There's nothing illegal or bogus about it. You can buy a piece of glass labelled Royal Doulton but Royal Doulton have never made glass. They use contractors. They make almost no china these days too. Labelling is a practice that large retailers have used for many, many years also.
Unfortunately it's not very helpful for glass collectors but it's about business and sales not collectors. It's marketing.
What we do know is that this label has been found on pieces made by Aseda, as in the link Anne gave. But it is also likely that Christ... was not just Aseda. It can take years to build up pictures so as to reach conclusions.