Watch List notes:

George III (1760-1820), Maundy Fourpence, Threepence and Penny, 1770 (3) (ESC 2247 [R3] {1911}, 2260 {2037}, 2290 {2355}; S.3750, 3753, 3759), the Fourpence very fine and scarce, the Threepence toned and brilliant, extremely fine, the Penny similar but wiped with some residual lustre (3).
As no Twopences were issued for 1770, this composite group is an accurate representation of the available Maundy 'set' for the year.
Estimate: £60 - £80