Never pay for postage again

I am about to go for a walk around to the letter box but before I do I have taken the below picture of the letter.  One of the things about buying boxes of old stamps or old collections is that you never know what that person was trying to do.  I have found huge quantities of unused stamps including whole sheets of them.  I am not into whole sheets so the two queens below I tore off such a sheet and also the other two (golden wattle) were bought at a post office 50 yar ago and kept by someone who wrapped them in cellophane ever since. So due to the increase in stamps at the start of the year I have the extra 10c covered for another 100 envelopes.