This bank printed 189 sheets of this bill and I believe there was 6 per sheet and so that add up to just 1134 printed and that is a very small number. This bank's charter number is 8141 which is printed on the bill.
On a website I was looking at it said, "Survivors are still likely but definitely not guaranteed". The low number printed makes this a rare bill. Please see pictures for the condition.
I saw someone wrote on this bill with a pencil and put the number 500 between the words Spring Grove and the picture of Andrew Jackson. This may be your only chance for a long time to acquire one of these bills. The item "National Currency The Peoples Bank Of Spring Grove Pa Type 1 1929 $20 Note Rare" is in sale since Saturday, March 9, 2019. This item is in the category "Coins & Paper Money\Paper Money\ US\National Banknotes".The seller is "lebomart" and is located in Halifax, Pennsylvania. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Sweden, Indonesia, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Bahrain, Croatia, Malaysia, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Viet nam, Uruguay.