Hey guys - I need help with a catalogue number. I have a copy of Forbin's catalogue but it only extends to 1915...and this particular Stamp Duty does not appear in Stanley Gibbons and is too recent for Forbin. I think it may be in the the Barefoot Commonwealth Revenues which I dont have a copy of. In fact, many of my commonwealth Fiscal stamps dont appear in Stanley Gibbons depressingly, which is why I have been relying on old Forbin.
The parent stamp is Forbin 1912 (HK SD62) - (reissued 1921 with different watermark) however I kind of need a catalogue number for this Overprint variant which looks like 1921 (Watermark CA script) - I think the original watermarks were CA text over Crown image. I think the 1921 version and another 1933 version were used specifically for the overprints (like B of E).
Any help would be appreciated - ideally I want to categorise this in my digital stamp collection with correct catalogue reference.
