S.3391, Twopence, undated. -

From an undated Maundy set.  MM. crown on rev. only, dies 1/1, twopence with double-arched crown, 0.96g/14.8gr/6h,  Images and data courtesy of DNW, and are from the auction of the North Yorkshire Moors Collection of Marvin Lessen, Part IV (21st January 2021).