The old 100 Rupee "Dam" issue is named for its reverse, which pictures a large dam, and the "white stripes" variety is a distinct, recognised look within the series. This page covers both single notes and a complete four-signature lot that brings together four different Governors' signatures of the series.
Sets like this are sought after because assembling every signature of one design in comparable condition takes time, and a ready-made lot saves a collector that hunt. Individual notes in higher collectable grades are also in demand, especially cleaner examples of the scarcer signatures.
Value here turns on the signature, the exact variety and the grade of each note, so two notes of the same issue can differ widely. Coinbazzar lists verified 100 Rupee Dam issue notes and signature sets, letting you check the piece and its current price on this page before buying.