Mitre Saw (Southport PR8)

Mitre saw for cutting wood, up to 45 degrees left/right, can probably cope with up to around 4" x 4", maybe 5". Has been lingering in the cupboard under our stairs for years, so is dusty and the blade has surface rust, but nothing a good clean and lubrication wouldn't sort. It's had very little use, so the blade should still be sharp.