These one rupee notes span two important eras. The 1935 note carries the signature of J.W. Kelly from the British India period, while the 1951 note is signed by K.G. Ambegaonkar and is an early Republic India issue.
Older one rupee notes are collected for their signatories, year and printing, and pre-independence issues in clean condition are steadily harder to find. Because paper survives poorly, a crisp, extremely fine note stands well above a soft, circulated one, and an attractive or fancy serial number can lift interest further. As always, grade, signatory and condition decide the value.
Coinbazzar lists verified one rupee notes with their year, signature and grade set out, including graded examples where available, so you can buy the exact piece featured. The listing on this page shows the current price.