US, New York, Erie—Index to Land Records, Grantors, 1630–1975 [Part A] [MS1Y-KGK]
- If only a 2-digit number was recorded, you can sometimes determine the first 2 digits of the 4-digit year from other information, such as the project dates or other contextual information on the image. If you cannot determine the 4-digit year, index the 2-digit number.
Deed index grantors series 3 A-P 1875-1884 (This can be found by searching in FamilySearch for the county the record comes from)
It says the dates for series 3, which is what this batch is, has dates no later than 1884; therefore, the date must be 1876 or 1878, not some other year.
In review mode, is it acceptable to determine the date of a transaction using a search for the record series? It would seem to be a good idea to provide as much detail as possible.