The note on the dates on the heavy cavalry swords:
On underside of the disc: 2D
14
BN30
The top is of course the unit
Next is the year of issue
Next the rack or issue number
As noted I have seen 14 and 15, uncertain of 16 but these are the only ones of have seen so marked. These have been in discussions over the past 20 years or so, but the issue and research have been since the 1970s. Richard Dellar has had notable success in investigating this topic.
Morgan was keyed on hilt design and to my recollection never made comments on markings in the work I am familiar with.
Thank you for correction on the Austrian cavalry sword..it was indeed the 1769....always wanted to find one but never did
Triarii thank you for the additional insights on the particulars of actual situations with these items.
Most interesting in actual experiences, you guys with these re-enactments etc. are amazing, and your keen attention to details give us perspectives we would not otherwise have.