1850 LINCS/DONNINGTON PENNY POST(LI1255). 1850 envelope Spalding to Folkingham with three margined 1d imperf (SG8) lettered OD tied "727" numeral of Spalding, on reverse good strike "Donnington Lincolns./Penny Post" hand stamp in black (LI255) and SPALDING date stamp AP 18 1850 in red. (Ref 80481).