| Location | England Lincolnshire Boston | 
| N side of: Meridian Road | |
| Distance (N) from Greenwich | |
| OS map details | OS Explorer: 261 | 
| OS grid ref | TF 34272.43870 (534272,343870) | 
| WGS84 lat/long | 52.975371, -0.001771 | 
| Type | Plaque (plinth) | 
| Marking date | 1984 | 
| Access | Unrestricted | 
An intriguing inscription! The stamps were issued on 26 June and Boston had its own special cancellation mark for first day covers that were posted in the town.