These one rupee notes come from the early decades of Republic India. Unlike the higher denominations, the one rupee note is issued by the Government of India and carries the signature of the Finance Secretary of its day rather than the RBI Governor. The 1957 issue was signed by L.K. Jha and appears here with a semi-fancy serial ending in 420 in UNC grade, while the 1951 issue signed by K.G. Ambegaonkar is a grey-green variety in used condition.
Early one rupee notes are collected because they belong to the first republic-era paper money and survive in limited numbers, especially in clean grades. A crisp uncirculated note commands far more than a circulated one, and features such as the signatory, the variety, the colour shade and a fancy serial number all add to value.
Coinbazzar lists verified one rupee notes so you can match the exact issue from the video to a graded piece, with the live price shown on this page.