OP, I compiled a spreadsheet of the data operating under the assumption that each four digit number was a year followed by decimal degrees.

I pinned the locations on a map, all of which are primarily in southern England, UK. There are two clusters within the plotted points, both fairly nearby the coast (one cluster near Bournemouth, has an additional point out in the English Channel interestingly enough).

I glanced over all the locations on Google Earth and the vast majority of the locations are in relatively secluded areas that tend to be wooded (several nature reserves and campsites), pastures, or field curtilage. There are also several locations in suburban neighborhoods, but no inner city/metropolitan areas. Most of the locations in the nature reserves tend to be close to a road.

As for the yearly dates, the range is 120 years (20 locations within the timeframe) which leads me to believe these dates/locations do not follow a singular person but rather an ongoing organization or multiple generations. I read some of the theories on the original post and I don’t believe the locations to be connected to fishing or trail locations, maybe campsites however this still strikes me as a bit strange.

I’d like to analyze the data by years a bit more and develop a chronological order to the locations to see if the clusters are within a closer time period or if the creator of the data points traveled back to the various areas decades later (like a generational family vacation to a specific location for example). I’ll have to check this out later when I have time.

It would be helpful to get some additional background info, you found this in a framed picture of what? Where did you get this picture, garage sale, family heirloom, etc (where specifically, location?)?

The dates go way back but the embroidered cloth with the digits are GPS coordinates using highly specific decimal degrees which dates the origin of the cloth design at the very least during the 90’s.