This is an exceptionally rare and highly specialized offering: a 12-note set of ₹10 Reserve Bank of India notes, all sharing the prefix 61W — the final alphabetical prefix used in this note series. Once a prefix letter reaches "W" in a given numbering sequence, no further prefix letters follow, meaning 61W represents the absolute point of this note's entire print run, after which the series transitioned to a new note type or design. This gives every note bearing this prefix inherent historical significance as the closing chapter of that particular issue.

Within this final prefix, the set captures the complete beginning-and-end serial structure:

• The first 10 notes ever printed in the final prefix: 61W 000001 through 61W 000010
  
• The very last note of the standard 6-digit run: 61W 999999
  
• The "overflow" or "solid zero" note: 61W 1000000 — issued once the standard serial run was exhausted, marking the final individual note struck under this prefix

Because 61W is the terminal prefix of the series, these aren't just rare fancy numbers — they represent the first notes and the last notes ever printed for this note type as a whole. That combination (series-first meets series-last, captured across both ends of the final prefix block) is a genuinely rare accomplishment in Indian numismatics, since it requires sourcing notes from the very beginning and very end of a print run that, by definition, was never repeated.

The notes feature the Mahatma Gandhi series design, with Gandhi's portrait, the Ashoka Pillar emblem, and the RBI Governor's signature and promissory clause: "I PROMISE TO PAY THE BEARER THE SUM OF TEN RUPEES."

Why this set is exceptional:

• Final series prefix (61W) — the last alphabetical prefix issued for this note type, marking the literal end of the print run
  
• True "000001" note — the first note printed under the final prefix, effectively the last "first note" this series would ever produce
  
• "1000000" overflow note — an exceptionally scarce special serial, doubly significant here as it closes out both the prefix and the series
  "999999" note — the final note of the standard sequential run within the terminal prefix
  
• Complete sequential bridge (000001–000010) — an unbroken run immediately following the true first note
  
• Series-ending significance — collectors of "last prefix" and "end of series" notes treat these as a distinct category, often more actively pursued than mid-series fancy numbers
  
• 12 notes total, together forming one of the most complete "beginning and end of an entire series" sets achievable

Who this set is for

This is a premier acquisition for advanced fancy-number and "end of series" collectors, serial-number completionists, institutional or museum-grade collections, and investors seeking one of the rarest achievable combinations in modern Indian currency — the true opening and closing notes of an entire print series, which can never be reproduced once dispersed.