omg , you want to sell your old 10 doller note. for $15? ... do you think this world is really that full of suckers? Singapore is only turning 40 this august... your 10 doller note isnt what people would call a "precious piece of history" now would it?
yo dude... well , the profit from a ..."vintage" $10 note will get you ... well at best $5 profit.
$5 will get you that wah pedal?.
seriously. have you considered getting a part time job. or selling some more ..substantial items.. other then... er.. your watch ... and your old money.
sell your T.V man ... or your computer... and get that Wah pedal!!