I say authentic and a great deal
In older auction catalogs Ive seen uncut sheets of these exact labels, but I cant locate the auction with the sheet yet...
(I have over 100 large auction catalogs going back 25 years)
They are embossed and the photos I have match this eBay example in every way. Embossed with dots around the portrait and the gold parts (diamonds etc.) of the red/gold design are embossed and also around the white area is embossed with a doted design.
found 2 in older auctions...
1991 Copeland Auction, they have one pictured (low grade, missing tip) with an estimate of $3K and it received a $1500 bid but didnt pass reserve.
1991 Wolffers Auctions had one in MINT condition with a $3K est. but I have no record of the price realized.