This is Mauritius booklet with both King George VI and Queen Elizabeth II stamps.  It was issued in 1953.  It's SG SB 1/CW B1, the 5R Booklet.

This one here has an EXCEPTIONALLY RARE FLAW!  On the King George VI 5 Cent Pane, the R10/5 stamp has a Q replacing the O in Mountain!  This may be unique!

This booklet is Mint and valued at L225+++ in the Stanley Gibbons Catalogue!

If you like what you see, come check out our store!  We offer a wide variety of stamps, covers, and other items for all your philatelic needs!

This item is over $100USD so I will ship it using Priority Mail in the US, and Registered Mail overseas.  This is to ensure that it reaches you in a safe and timely manner, and includes tracking!