This episode covers the first quarter century of the service and unveils a whole host of unique artefacts. We'll see the graduation certificate of a doctor who only qualified on the NHS's first day and yet was thrown straight into surgery…one of the last remaining roadworthy Invacars, a specialist vehicle adapted for disabled drivers that was handed out for free in the 60s…and even a tiny booklet listing a family's expenditure on doctor's fees, a stark reminder of life before the Health Service when every GP visit came with a charge.