1890 Greart Britain Penny Postage Jubilee envelope, uprated with ½d vermilion (SG 506) and 2s violet (SG 476), for a total franking of 2s 1½d. Likely philatelic usage, overfranked well beyond UPU letter or registration rates.

Issued to commemorate the 50th anniversary of Uniform Penny Postage, this special stationery envelope (with printed 1d red) was sold with an insert card at the South Kensington Jubilee Exhibition and post offices across the UK. A total of 148,830 sets sold through London’s Head, Branch, and Receiving Offices at 1s per set.

Scarce high-value franking on Jubilee stationery; an attractive and uncommon combination. Ideal for exhibition or thematic display.