Hmm, I do not always take stock in RM records, although Dyer is an excellent source (was?) for many things. I have seen by recall two other 1935 penny proofs outside of museums. So how many others are they as surely I have not seen all, and I do not think they were the same coin as this? I have not made a special point of collecting them but do have a 1936 that came with a proof set. I can not prove the point but believe that there were coins of this vintage released as part of larger sets, and also individually. Some silver sets seem to have made it out sans the copper lesser bits, and may have also been released in single and set form but can not prove that either. Good luck on finding VIP Record proofs in dealer stocks as in my experience there are not too many there and most are tied up in the museums or in collections.