The way the notation is made at the bottom of the page, below all the bow descriptions, its unclear whether all Golden Sovereign left-handed bows were custom orders or just the Lady Mercury. This bow is way heavier than the catalog suggests would be available for the 62" Lady Mercury and it has black glass rather than white, but maybe that was no big deal when placing a custom order for a lefty . But the absence of a serial number or any other writing is also intriguing.