What year is this 22 9 shot revolver sentinel deluxe R107 Serial 1885446?

The Sentinel Deluxe R107 revolver was produced by Hi-Standard, and its manufacturing spanned from the early 1960s to the mid-1970s. To determine the specific year of your revolver, you would typically need to reference Hi-Standard's production records or serial number charts. Serial number 1885446 likely falls within that production period, suggesting it was made sometime in the 1960s or early 1970s. For a more accurate dating, consulting a firearms expert or specific Hi-Standard documentation would be advisable.