UDCs: Norton - Norton Fitzwarren and Norton-sub-Hamdon, Galhampton

A "NORTON" undated double-arc handstamp was issued to both Norton Fitzwarren under Taunton in September 1845 and to Norton-sub-Hamdon under Ilminster in May 1852.  If the strikes are clear one can distinguish between the two UDCs but otherwise one has to identify them based on which Post Town the cover comes under.

This first example is from Norton Fitzwarren, used in January 1852 in blue (currently the only recorded example of this udc in blue; it is also known in black).  The cover is postmarked in Taunton and is dated before the second UDC under Ilminster was issued.

The next two sheets show examples of the other Norton UDC from Norton-sub-Hamdon.  Both examples are postmarked at Ilminster. 

This second example is currently the latest recorded date of usage of this Norton udc.  The cover also has a poor "GALHAMPTON" udc being used as a receiving mark.  The envelope is addressed to South Barrow and Galhampton was the closest post office, being about 4 miles from South Barrow.

Some more Parcel Post Labels - Taunton, and Ilminster area

Following on from my previous post, I've been working through my rather battered copy of The Parcel Post of the British Isles by James Mackay to work out what the different types of Parcel Post Label (PPL) are.  The sheet below is my shorthand summary from the book (without clear punctuation).

Here is a sheet of PPLs for Taunton from 1896 to 1904.  I have one slight problem; the top right PPL dated 12th December 1900 appears to me to be a Type R (dot after LIST, no dot after Number, dot after Postge), but Mackay says that was issued in 1901.  It could be Type N (I can't see the difference between Type N and Type R) but Mackay says Type N is 'mainly London'.  Is there another reference I could consult ?

Here's another sheet, this time of Ilminster and Offices under Ilminster.