Stamps UK and US have a ?

On these UK stamps they are together - why on earth would they print two different colours and two different values on the same sheet ?


What is up with the holes this on O S I think


 On this UK it has JP&S


Any help would be nice - thank you, daryl

 A perforated initial i.e. perfin is the name for the holes through a stamp ...

http://www.linns.com/howto/refresher/perfins_19980126/refreshercourse.aspx

http://en.wikipedia.org/wiki/Perfin

thank you ZacUK

Quote: ZacUKA perforated initial i.e. perfin is the name for the holes through a stamp ...

http://www.linns.com/howto/refresher/perfins_19980126/refreshercourse.aspx

http://en.wikipedia.org/wiki/Perfin

Yeah you get them quite often on Australian George V stamps they're a reasonably popular sub-category to collect, like officials, postage dues, government insurance stamps etc.