Yes, looks to be an 1852. None of the other dates for the 1850s could possibly match.
Here is mine for comparison. I picked this up, unidentified, in an album of threepences and fourpences in a local auction nearly 20 years ago,
Yes. I have tried to blow up the date and especially the last datal "2" which is usually slightly tilted and set downward from the other digits. Can't quite make it out on yours, so might you be good enough to blow it up to larger size?
1852 is considered a scarce, and at one time rare date. With the advent of the internet, it likely still is but many more have shown in the last couple of decades. Most are much better preserved than your specimen & so the wear on yours will tend to draw value down to likely the 50-75 Quid range most likely. I must confess I have never seen one so worn. M. Gouby has an internet site where you may look up further details as one example.
Nice group again there. You have the basis of a good Maundy collection.
Yes the fourpence is Maundy. The circulation fourpence in the 19th century have Britannia on the reverse instead of the numeral 4. In any case, no circulation Britannia 4Ds were issued dated 1868.