There are three series of countermarked coins from the Bank of England. These are:
1797 oval countermarked 8 reales ("dollars" worth 4s9d), KM# 626, 627, 632, 633, 634, 635, 637 & 641.
1799 oval countermarked 4 reales ("half dollars" probably not put into circulation), KM# 622.
1804 octagonal countermarked 8 reales ("dollars" worth 5s), KM# 659.
The last of these was followed by the overstruck dollars issued between 1804 and 1811 and the 1s6d and 3s bank tokens issued between 1811 and 1816: KM# Tn2, Tn3, Tn4 & Tn5.
Following the revision of the categories, all of these are now classed as Official necessity coins and have been moved from various “place holder” currencies into Pound sterling (1158-1970). However, after this was completed, a new, entirely fictitious currency, "Dollar (1797-1804)" seems to have been created and the oval countermarked coins were moved there. The referee has just moved them back after I requested it and is a mystified as I am by this.
Now that these coins are in the correct currency and have an appropriate categorization, all that remains is to fix the dates for the countermarked coins. Some are dated according to when they were countermarked but others have the date of the original coin. Since these pieces were not created until the countermarking, it seems to me we should date them according to that event and record the original date of the coin in the comments for each year line. All the comments are in place but some of the main dates are locked. Could an administrator please complete the job by changing the dates of those which are locked? This didn't matter much when they were in separate sections but now they are listed alongside the rest of the British coins, we really need to give them their correct dates.

